Guess I'm Dumb

"Guess I'm Dumb"
Single by Glen Campbell
B-side"That's All Right"
ReleasedJune 7, 1965 (1965-06-07)
RecordedOctober 14, 1964 (1964-10-14) – March 8, 1965 (1965-03-08)
StudioWestern, Hollywood
GenreOrchestral pop
Length2:44
LabelCapitol
Songwriter(s)
Producer(s)Brian Wilson
Glen Campbell singles chronology
"Tomorrow Never Comes"
(1965)
"Guess I'm Dumb"
(1965)
"Universal Soldier"
(1965)
Licensed audio
"Guess I'm Dumb" on YouTube
Audio sample

"Guess I'm Dumb" is a song recorded by American singer Glen Campbell that was released as his seventh single on Capitol Records on June 7, 1965. Written by Brian Wilson and Russ Titelman, it is a love song that describes a man who regrets ending a relationship after he realizes he still harbors deep feelings for his former lover. The single failed to chart.

The song was originally intended to be recorded by Wilson's band, the Beach Boys, during the sessions for their album The Beach Boys Today! Wilson's bandmates rejected the track, and so he ultimately produced it for Campbell, who had recently been hired as an emergency fill-in for Wilson on the group's concert tours. The song has since been covered by artists including Tatsuro Yamashita, Louis Phillipe, and Wondermints.