Alex Carlin is an American rock musician and songwriter, best known as a member of seminal California bands The Rubinoos and Psycotic Pineapple, as well as for his solo career.

In 2009 he surpassed a Guinness World Record in Radomsko, Poland playing the "Longest Solo Concert" – 32 hours of rock songs.

[1] In 1966, in fifth grade at Cragmont Primary School in Berkeley, California Alex and Jon Rubin formed The Constipated Orange.

In seventh grade they met Tommy Dunbar and Greg 'Curly' Keranen (later Jonathan Richman's main bassist) and became the Rubinoos.

[2][3] In 1984 "Little Demon," a song co-written by Alex, was performed by Adrian Zmed in the hit comedy film Bachelor Party with Tom Hanks.