Iain D. Thomson (born 1968) is an American philosopher and Professor of Philosophy at the University of New Mexico (UNM).

Thomson studied as an undergraduate at the University of California, Berkeley, where he worked with Hubert Dreyfus, and then earned his Ph.D. in philosophy at the University of California, San Diego.

As a visiting graduate student at UC Irvine, he also studied with Jacques Derrida.

[2][3][4] Thomson received a National Endowment for the Humanities Research Fellowship and UNM College of Arts and Sciences' Gunter Starkey Teaching Award in 2003.

His younger brother is Mungo Thomson, a contemporary visual artist based in Los Angeles.