The theme of CAHR 2011 was “Honouring our history, embracing our diversity” it was chosen to recognize that it is CAHR’s 20th annual conference. CAHR 2011 honoured all that has been done by Canadian researchers, health care providers, community members and especially people living with HIV who have dedicated much time and effort to develop more effective HIV prevention, treatment, care and support. CAHR 2011 is being held in Toronto, one of the most culturally diverse cities in the world, and will highlight the strengths that our diverse communities bring to the fight against HIV/AIDS, and the ways in which increasing inclusiveness can support the care of vulnerable groups.