who wrote the song one

The song “One” that begins with the lyric “One is the loneliest number that you’ll ever do” was written by American singer‑songwriter Harry Nilsson.

He originally wrote and recorded it for his 1968 album Aerial Ballet , and it later became a major hit when covered by Three Dog Night in 1969.

Quick Scoop: Different songs called “One”

Because who wrote the song One can refer to several different tracks, here are the most commonly meant ones:

• “One (is the loneliest number)” – written by Harry Nilsson.

• “One” by U2 – written by the members of U2 (Bono, The Edge, Adam Clayton, Larry Mullen Jr.) for their 1991 album Achtung Baby.

• “One” by Ed Sheeran – written by Ed Sheeran.

If you had a specific “One” in mind (U2’s rock ballad, the lonely piano song, or another artist), tell me which version or a lyric line, and I can narrow it to the exact songwriter.

Information gathered from public forums or data available on the internet and portrayed here.