Martin Lesley Crandall (born April 20, 1975) is the keyboardist of The Shins, who also plays bass guitar during some live performances, allowing fellow band member Dave Hernandez to play electric guitar. This has happened as The Shins move away from the keyboard-drenched reverb of their debut album Oh, Inverted World towards the cleaner guitar driven sounds of their album Chutes Too Narrow. Crandall is originally from Albuquerque, New Mexico, but spent some of his high school years in Las Vegas, Nevada (where he formed a band called Captain Go). He now resides along with the rest of the band in Portland, Oregon.

Crandall is featured extensively in Current TV documentary All Eyes on The Shins.