"Flag Day" is the debut single released by British indie rock band The Housemartins. Released in 1985,^[1] it peaked at #124 on the UK Singles Chart, and a re-recorded version of it appeared on the debut album London 0 Hull 4. "Flag Day" also appears on the compilations Now That's What I Call Quite Good, Soup and as a shorter live version on Live at the BBC.

The song was also sampled and used heavily on the dance track "Change the World" by Dino Lenny.^[2]

• 7"

"Flag Day" / "Stand at Ease"

• 12"

"Flag Day" / "You" / "Stand at Ease" / "Coal Train to Hatfield Main"