Peter Enrique Kollock (November 1, 1959 – January 10, 2009) was an American sociologist and an associate professor and vice chair in the department of sociology at the University of California, Los Angeles.

[1] His research interests lay in "determining the basis of trust and cooperation in collective action.

"[1] One aspect of this research explored collaboration and online participation in virtual communities, arguing that cooperation is sustained by credit and relatively loose accounting systems.

[3][7] According to Buddhist Monk Phap De, "Peter was a very skillful and careful motorcycle rider.

[6] The department of sociology at UCLA now offers the Peter Kollock Memorial Teaching Award.