International Day Against Homophobia, Transphobia, and Biphobia

International Day Against Homophobia, Transphobia, and Biphobia is observed every year on May 17. In 2026, this date falls on a Sunday. Also known as IDAHOBIT, the day focuses on awareness, solidarity, and action against discrimination affecting LGBTQIA+ people. It is marked by individuals, organizations, governments, and community groups through education, advocacy, public events, and quieter acts of support. ¹

History of International Day Against Homophobia, Transphobia, and Biphobia

The observance began as the International Day Against Homophobia, with the IDAHO Committee created in 2004 and the first day marked in 2005. May 17 was chosen because it marks the World Health Organization’s 1990 decision to remove homosexuality from the International Classification of Diseases. The name later expanded to include transphobia and biphobia, reflecting a broader focus on discrimination tied to sexual orientation, gender identity, and gender expression.

Today, IDAHOBIT is understood as a decentralized global observance rather than an event controlled by one organization. It is connected with public education, community visibility, policy advocacy, and support for LGBTQIA+ rights. The official IDAHOBIT materials also note that the day may be framed differently in different regions, while the shared focus remains dignity, safety, freedom, and equal treatment.

Why is International Day Against Homophobia, Transphobia, and Biphobia important?

International Day Against Homophobia, Transphobia, and Biphobia matters because discrimination still affects people’s safety, health, work, schooling, family life, and ability to participate openly in society. The day gives communities a visible point in the year to name these harms and support practical changes, from safer schools and workplaces to fairer laws and public services.

The observance also has a broader human rights purpose. It connects local experiences with global conversations about dignity, freedom of expression, peaceful assembly, and equal protection under the law. For people who cannot safely be public, the day can still offer recognition and a sense that their lives and rights are not invisible.

• It names discrimination that is often ignored.
• It supports safer communities for LGBTQIA+ people.
• It gives organizations a reason to educate and act.
• It connects local advocacy with global human rights work.
• It affirms that dignity should not depend on identity.

How to Observe International Day Against Homophobia, Transphobia, and Biphobia

Share accurate information about IDAHOBIT, attend a local event, support an LGBTQIA+ organization, or take part in a workplace, school, or community discussion about inclusion and safety. People in public-facing roles can review policies, language, forms, and everyday practices to see whether they treat LGBTQIA+ people with respect and fairness.

A quieter observance can still be meaningful. Read about LGBTQIA+ rights in different countries, listen to personal stories from trusted organizations, or check in with someone who may value support. In places where visibility creates risk, private learning, careful allyship, and support through safe channels may be the most appropriate approach.

• Learn why May 17 was chosen.
• Share a trusted IDAHOBIT resource.
• Support a local LGBTQIA+ group.
• Review inclusion policies at work or school.
• Speak up when jokes or comments cause harm.

International Day Against Homophobia, Transphobia, and Biphobia Dates

1. https://www.ungeneva.org/en/meetings-events/events/observances-special-events/2026/05/international-day-against-homophobia[↩]