Transgender Day of Remembrance (TDoR), which occurs annually on November 20, is a day to remember those who have been murdered as a result of transphobia (the hatred or fear of transgender and gender non-conforming people), and a community effort to bring attention to the continued violence endured by the transgender community, and ultimately to help bring an end to this violence and misunderstanding.

The Transgender Day of Remembrance was founded in 1998 by Gwendolyn Ann Smith, a trans-woman who is a graphic designer, columnist, and activist to memorialize the murder of Rita Hester in Allston, Massachusetts. Since its inception, TDoR has been held annually on November 20th and has slowly evolved from the web-based project started by Smith into an international day of action. In 2010, TDoR was observed in over 185 cities throughout more than 20 countries.

Typically, a TDoR memorial includes a reading of the names of those who lost their lives during the previous year, and may include other actions, such as candlelight vigils, art shows, food drives, film screenings, and marches. TDoR is the culmination of Transgender Awareness Week. The Gay & Lesbian Alliance Against Defamation (GLAAD) has extensively covered TDoR. GLAAD has interviewed numerous transgender advocates (including actress Candis Cayne, profiled an event at the New York City LGBT Community Center, and discussed media coverage of TDoR.