Bob Hattoy (November 1, 1950 – March 4, 2007) was an American activist on issues related to gay rights, AIDS and the environment.

He joined Bill Clinton's presidential campaign during the 1992 primary and then learned that he had AIDS-related lymphoma and began chemotherapy treatments.

Gay men and lesbians created community health clinics, provided educational materials, opened food kitchens, and held the hands of the dying in hospices.

[2] The next year, to decrease his visibility, the administration appointed him White House liaison on environmental matters at the Interior Department, where he remained until 1999.

According to James Carville, investigators for federal special prosecutor Kenneth Starr repeatedly questioned Hattoy in April 1997 if he had helped place gays and lesbians in prominent positions in the Clinton administration.

[5] In 1994, in an interview with POZ magazine, Hattoy criticized several administration officials for failing to develop an overall AIDS policy and discussed how his outspokenness had prompted his reassignment to the Interior Department.

[8] He was an outspoken critic of presidents Clinton, Ronald Reagan and George H. W. Bush for their policies on issues such as conservation, the government's response to HIV/AIDS, and the "ban" on gay and bisexual men and women serving openly in the U.S. military.

"[9] Hattoy battled recurrent pneumonia and other complications several times and suffered a bone marrow infection a few weeks before his death, but was generally healthy throughout his years with AIDS.