"Diary" is a song written and produced by David Gates and released by his band Bread in 1972, both as a single and on the album Baby I'm-a Want You.

[11] Record World praised the lyrics and called it an "incredibly delicate piece with all the ingredients for a number one hit.

[13] Rolling Stone critic David Lubin had a negative opinion, saying that "with its bland melody and an instrument which sounds like it's either an electrified jew's harp or underwater, [Diary] is a melodramatic piece about a fellow who finds and misinterprets the diary of the girl he's in love with, and like a character in an early Gide novel, he pledges his life to her nevertheless.

"[14] Classic Rock History critic John Tabacco rated it as Bread's 8th best song, noting that the "sparse" production with "just an acoustic guitar, Gates’s sweet vocals, and an electric guitar with a vibrato effect" was reminiscent of Bread's earlier song "If".

[5] Anita Kerr recorded an easy listening cover of "Diary", which featured Pieter van Vollenhoven on piano, and was released on her 1979 album Together, which reached No.