Marrying Maiden is the second studio album by San Francisco psychedelic band It's a Beautiful Day, released in 1970 on Columbia Records.

Founding member Linda LaFlamme was replaced by keyboardist Fred Webb on this project.

Grateful Dead guitarist Jerry Garcia contributed on two tracks and Charlatans member Richard Olsen guested on a track as well.

Lindsay Planer at AllMusic gave the album three stars out of five, writing:"The second long-player from It's a Beautiful Day is an exceedingly more pastoral effort than the band's self-titled debut.

As many of the Bay Area groups...had begun to do, the band realigns its sound from the dark psychedelia and proto-prog of its earlier works and into a lighter and earthier country-flavored rock.