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National Siblings Day

Show your siblings you appreciate them, even if you sometimes want to kill them, or volunteer to adopt-a-sibling and enrich some else’s life on Siblings Day.

Family People & Relationships62

Marketing angleinferred

Celebrate sibling bonds through gifting, experiences, and nostalgia-driven content that drives retail, dining, and travel bookings while supporting emotional connection.

Relevance 62medium intent

Share throwback photos with siblings—drive photo printing, scrapbooking, and digital storage services
Plan a sibling dinner or outing—promote restaurants, travel experiences, and activity bookings
Send a meaningful gift or card—highlight personalized gifting, e-commerce, and greeting card retailers
Honor lost siblings through memory-sharing—partner with non-profits and grief support organizations

History

National Siblings Day was founded by Claudia Evart, a freelance paralegal professional from Manhattan, New York, USA. Evart was inspired to start Siblings Day after she had the tragic experience of losing both her brother and her sister in separate accidents at an early age. The date of Siblings Day is very important to its founder as it marks the birthday of her sister, Lisette.

In an effort to promote the day, Evart began the Siblings Day Foundation as a charitable organization in 1995. Since then, the founder has dedicated herself to convincing American government officials to recognize the day. This effort has included 49 state governors, many congressmen and congresswomen, as well as US presidents Obama, Bush and Clinton.

Mostly, however, Evart wants the public all over the world to recognize the day and use it to appreciate their own brothers and sisters. The Siblings Day Foundation also offers resources for people who need help with their sibling relationships.

In addition to the United States, Siblings Day is celebrated in many countries, including Australia, Brazil, India, Japan, Nigeria, Sweden, the United Kingdom, and many more.

Sometimes called Brothers and Sisters Day, this is a day of celebration and recognition for siblings around the world, whether they have passed on or are still living.

How to celebrate

Spend Time With a Sibling

One of the most important activities on this day is to acknowledge and appreciate a brother or sister (or both!) Siblings Day can be celebrated by making a phone call to a sibling, sending a card or gift, making a dinner invitation, or simply going for a walk in the park. For those who have siblings who have passed away, this might be a nice time to visit a place that holds happy memories from younger days. It might be necessary to take time to be sad, if needed, and also take time to remember and be thankful.

Reminisce Through Old Photos

Many people have lots of old photos that they haven’t looked at in quite some time. Whether they were taken on film long ago and are now sitting in a shoebox somewhere, or they have been digitized and are easily accessible online, Siblings Day is a fun day to enjoy the nostalgia of those photos. Share them with others in the family who might also have enjoyable memories. Siblings Day might even be the right time to put together a scrapbook to hold photos, memories and stories of beloved brothers and sisters.

Make Use of The Siblings Day Foundation Resources

As part of their work, the Siblings Day charitable organization provides different types of help related to siblings, whether due to grief and loss or the need for connection. Some of the services offered by the organization include: Sibling-2-Sibling Support Groups. Offered to those who need help with grief recovery due to the loss of a sibling, this support service engages the help of professionals such as social workers and psychologists. Lost Sibling Registry. For those who have lost touch with a sibling for some reason or another, this registry helps to match up missing brothers and sisters with each other. Adopt-a-Sibling Program. Providing resources that helps facilitate the adoption of siblings.

Teach Children to Appreciate Their Siblings

It’s never too early to get a start on teaching children to love and care for their brothers and sisters! For parents of little ones who want to celebrate Siblings Day, it’s fun to dress siblings in matching outfits and have a photo shoot. Older kids can write letters or stories that include the things they appreciate each other–these can then be put into a memory box to read when the kids grow up! Kids can also read (or have read to them) books about siblings that encourage them to get along. These might include The Evil Princess vs. the Brave Knight by Jennifer L. Holm; Lola Reads to Leo, by Anna McQuinn; The Unbudgeable Curmudgeon, by Matthew Burges; or anything from the Charlie and Lola series by Lauren Child.

Listen to Music about Brothers and Sisters

Creating and sharing a playlist in honor of the relationship between siblings is a fun way to celebrate National Siblings Day. For those who have local siblings, get together and listen to songs that have special nostalgia within the family. For those who have faraway siblings or siblings who have passed away, listening to songs that are reminiscent of times together can be therapeutic. Put some of these songs onto a playlist on Spotify or another music hosting site, or come up with your own list of songs: He Ain’t Heavy He’s My Brother (1969) The HolliesMy Big Sister (2008) Barenaked LadiesBrother Sister (2010) Beta RadioSister to a Brother (2011) Rob Finlay

Watch a Film About Siblings

Whether watching along with a brother/sister or alone, these films feature the relationships between siblings: Seven Brides for Seven Brothers (1954). A comedy musical film about a group of backwoods brothers who are all looking to get married. Sabrina (1954). Two brothers compete for the attention of a beautiful woman, Sabrina (Audrey Hepburn). Hannah and Her Sisters (1986). The stories of three grown siblings whose lives intertwine from one Thanksgiving to another. The Fabulous Baker Boys (1989). This rom-com features two brothers (played by actual brothers, Beau and Jeff Bridges) who try to eke out a living as lounge pianists. National Siblings Day Timeline1890s Early Study of Birth Order and Sibling Influence Psychiatrist Alfred Adler begins developing ideas that children’s positions in the family affect personality, highlighting rivalry and support among siblings as central to development. 1927 Adler Publishes “Understanding Human Nature” Alfred Adler’s book popularizes his birth order theory, bringing sibling dynamics into mainstream psychology and influencing later research on how brothers and sisters shape each other’s lives. [1]1950 John Bowlby Introduces Attachment Theory British psychiatrist John Bowlby presents attachment theory, which later inspires research into how older siblings can act as attachment figures and emotional supports for younger children. [1]1967 Sibling Rivalry Discussed in “The Birth Order Book” Walter Toman’s work on family constellation examines typical patterns among the oldest, middle, and youngest children, helping clinicians and parents see sibling rivalry and companionship as predictable dynamics. [1]1970s Anthropologists Reframe Sibling Roles in Kinship StudiesEthnographic studies in Africa, Asia, and the Pacific show that brothers and sisters often share parenting, economic duties, and ritual responsibilities, challenging Western assumptions that parents are the only key caregivers. [1]1986 Urie Bronfenbrenner Highlights Family Systems Developmental psychologist Urie Bronfenbrenner’s work on ecological systems theory emphasizes that child development occurs within a network of relationships, including influential day‑to‑day interactions with siblings. [1]1994 Comprehensive Review of Sibling Relationships in Development Developmental psychologist Robert Plomin and colleagues publish influential work on siblings, showing how shared genes and nonshared environments make brothers and sisters both similar and surprisingly different.

Early Study of Birth Order and Sibling Influence

Psychiatrist Alfred Adler begins developing ideas that children’s positions in the family affect personality, highlighting rivalry and support among siblings as central to development.

Adler Publishes “Understanding Human Nature”

Alfred Adler’s book popularizes his birth order theory, bringing sibling dynamics into mainstream psychology and influencing later research on how brothers and sisters shape each other’s lives. [1]

John Bowlby Introduces Attachment Theory

British psychiatrist John Bowlby presents attachment theory, which later inspires research into how older siblings can act as attachment figures and emotional supports for younger children. [1]

Sibling Rivalry Discussed in “The Birth Order Book”

Walter Toman’s work on family constellation examines typical patterns among the oldest, middle, and youngest children, helping clinicians and parents see sibling rivalry and companionship as predictable dynamics. [1]

Anthropologists Reframe Sibling Roles in Kinship Studies

Ethnographic studies in Africa, Asia, and the Pacific show that brothers and sisters often share parenting, economic duties, and ritual responsibilities, challenging Western assumptions that parents are the only key caregivers. [1]

Urie Bronfenbrenner Highlights Family Systems

Developmental psychologist Urie Bronfenbrenner’s work on ecological systems theory emphasizes that child development occurs within a network of relationships, including influential day‑to‑day interactions with siblings. [1]

Comprehensive Review of Sibling Relationships in Development

Developmental psychologist Robert Plomin and colleagues publish influential work on siblings, showing how shared genes and nonshared environments make brothers and sisters both similar and surprisingly different.

FAQ

How do sibling relationships typically influence a child’s development?

Researchers have found that siblings can act as companions, role models, and even “practice partners” for social skills, which can support language development, emotional regulation, and conflict resolution. Positive sibling relationships are linked with higher empathy and better peer relationships, while chronically hostile or aggressive sibling dynamics are associated with increased behavior problems and anxiety. The quality of the sibling relationship, rather than simply having siblings, appears to be what matters most for development.

Is sibling rivalry normal, and when can it become harmful?

Some degree of rivalry, jealousy, and competition between siblings is considered a normal part of growing up and can help children learn negotiation and compromise. It becomes concerning when conflict is frequent, intense, or one-sided, such as persistent bullying, physical aggression, or humiliation. Studies show that severe, ongoing aggression between siblings can have mental health effects similar to peer bullying, including higher risks of depression and low self-esteem, so adults are encouraged to monitor and intervene when necessary.

Do sibling relationships usually become closer or more distant in adulthood?

Longitudinal studies suggest that, on average, many siblings grow emotionally closer in midlife and later life, even if they were not especially close as children. Shared family history, caregiving for aging parents, and major life events can draw siblings together. However, patterns vary widely, and unresolved childhood conflicts, geographic distance, or disputes over family responsibilities can lead to estrangement in some families.

How do sibling roles and expectations differ across cultures?

Anthropologists and sociologists have documented that in many collectivist cultures, older siblings, especially sisters, are expected to provide substantial caregiving, help with household work, and support younger siblings’ education. In more individualistic societies, siblings are often encouraged to develop independent paths, with less formal responsibility for one another. Birth order, gender norms, and family economic needs all shape how much authority, obligation, or deference is expected between brothers and sisters in different cultural contexts.

Can adult siblings affect each other’s mental health and resilience?

Adult siblings often serve as important sources of emotional support, especially during stressful transitions such as divorce, bereavement, or health problems. Research indicates that people who report warm, supportive relationships with their siblings tend to show better psychological well-being and greater resilience in the face of adversity. Conversely, highly conflictual or cutoff sibling relationships are associated with greater loneliness and distress, particularly in later life when other social networks may shrink. [1]

What does research say about birth order and personality among siblings?

Large-scale studies have found only very small or inconsistent links between birth order and broad personality traits such as extraversion or emotional stability. While stereotypes paint firstborns as more responsible and later-borns as more rebellious, recent analyses suggest that family size, parenting style, and socioeconomic factors explain far more variation than birth order alone. However, in many families, firstborns do take on more leadership and caretaking roles, which can shape their experiences and self-perceptions.

How do siblings typically support each other in later life and old age?

In later adulthood, siblings often become part of an informal care network, providing emotional support, practical help, or coordination of care for aging parents and for one another. Studies in multiple countries show that adult siblings may help with transportation, managing finances, navigating health systems, and offering companionship, especially for those who are widowed or live alone. The frequency and type of support usually depend on proximity, past relationship quality, and each sibling’s own health and resources.[1]