Alanna Heiss (born May 13, 1943, in Louisville, Kentucky) is the Founder and Director of Clocktower Productions, a non profit arts organization, online radio station, and program partnership with six cultural institutions in three boroughs in New York.

[6] In the early 1970s, Heiss became a leader of the Alternative Spaces Movement,[7] which turned abandoned or under-utilized buildings in New York City into temporary centers for the production and presentation of contemporary art.

These projects across the city were grouped under the umbrella organization The Institute for Art and Urban Resources,[8] which operated as many as 11 spaces in the early to mid 1970s, including the Idea Warehouse, 10 Bleecker Street, and The Coney Island Factory.

Opening with inaugural shows by Joel Shapiro, Richard Tuttle, and James Bishop, the Clocktower presented seminal work in the visual arts, performance, and music by artists including Gordon Matta-Clark, Lynda Benglis, Max Neuhaus, Dennis Oppenheim, Richard Artschwager, Pat Steir, Vito Acconci, Michelangelo Pistoletto, Charlotte Moorman, Laurie Anderson, and Marina Abramović, Jennifer Bartlett, among others.

Richard Serra, Walter De Maria, Lynn Hershman Leeson, John Baldessari, Bruce Nauman, Robert Ryman, Jennifer Bartlett, Vito Acconci, Daniel Buren, Lawrence Weiner, Max Neuhaus, Nam June Paik, Marcia Hafif,[17] were among the artists to participate in this exhibition, which articulated much of the ideals and conceptualizations of installation art and has since become emblematic of the alternative spaces movement.

[21] When she left P.S.1 in 2008, Heiss founded Art International Radio, which is unaffiliated with P.S.1, yet houses in its online archive programs that originally aired on WPS1.