The West Turkana Archaeological Project (WTAP) is a multidisciplinary project that seeks to uncover artifactual and fossil traces of Plio-Pleistocene hominin behavioural evolution in the Nachukui Formation west of Lake Turkana in northern Kenya. WTAP is best known for the discovery of the earliest traces of early human technology at the 3.3 Ma site of Lomekwi 3, and the oldest Acheulean handaxes at Kokiselei 4 dated to 1.76 Ma. 

WTAP is currently directed by Sonia Harmand (Stony Brook University / Turkana Basin Institute & CNRS) and Jason Lewis (Turkana Basin Institute). Core WTAP team members include: Hélène Roche, Vincent Arrighi, Xavier Boes, Craig Feibel, Sammy Lokorodi, Alii Mutisya, Sandrine Prat and Nicholas Taylor. Other participants include Jenna Anderson, Adrian Arroyo, Michel Brenet, Hilary Duke, Chris Lepre and Rhonda Quinn.

The data in the West Turkana Archaeological Project are currently restricted to project members.