One Day at a Time is the 11th studio album by Joan Baez, released in January 1970. Recorded in Nashville, the album was a continuation of Baez' experimentation with country music, begun with the previous year's David's Album. It is significant in that it was the first to include Baez' own compositions, "Sweet Sir Galahad" and "A Song for David", the former song a ballad for her younger sister Mimi Fariña, and the latter song being for her then-husband, David Harris, at the time in prison as a conscientious objector. One Day at a Time also included work by The Rolling Stones, Willie Nelson, and Pete Seeger.

The album contains three of the songs Baez had performed at Woodstock four months earlier: "I Live One Day at a Time", "Joe Hill", and "Sweet Sir Galahad".

The Vanguard reissue contains two outtakes from the One Day at a Time sessions: "Sing Me Back Home" and "Mama Tried", both duets with Jeffrey Shurtleff, and both Merle Haggard covers. (The two cuts had first appeared on Baez' 1993 boxed set Rare, Live & Classic). (The recording of "Mama Tried" includes an initial aborted take, interrupted when session guitarist Jerry Reed's finger becomes stuck between his guitar strings, followed by laughter by all present at Reed's mishap; the musicians and Baez then regain composure and perform a second take of the song.)