The AIDS Support Organization (TASO) is an indigenous HIV and AIDS service initiative, registered in Uganda as a non-governmental organisation. It is a pioneer non-public actor in the HIV and AIDS response in Uganda. TASO is a membership organisation with over 4,000 subscriber members.

TASO was started in 1987 by a group of medical workers who had witnessed how badly patients showing signs of Acquired Immuno Deficiency Syndrome (AIDS) were being treated in the wards of the Mulago Hospital in Kampala. At first, it was a small, informal group of people meeting to talk about HIV and AIDS and grew into an organisation. It became one of the major HIV and AIDS care organisations in Uganda. When TASO started, Uganda was recovering from a war that brought the current government to power.