Jan Martin Gismervik (born 1988 in Avaldsnes, Karmøy Municipality, Norway) is a Norwegian jazz musician (drums), known from bands like Monkey Plot, Torg, Oker, O, PGA.
Gismervik was raised in Avaldsnes, where he played in local groups. He is educated from the Improvised Music and Jazz Department at the Norwegian Academy of Music with a Bachelor Performance Degree, and in 2014 awarded "Young Jazz Musician of The Year" at Molde International Jazz Festival together with Monkey Plot. He cooperated within the duo "PGA" on the debut album Corrections (2012). On Corrections the "PGA" duo is assisted by Henrik Munkeby Nørstebø (trombone) and Torstein Lavik Larsen (trumpet) on two tracs. Monkey Plot, including Christian SkÃÂ¥r Winther (guitar) and Magnus Skavhaug Nergaard (double bass), made their debut with the album Løv Og Lette Vimpler (2013).