"Tell Her No" is a hit single written by Rod Argent and included by English rock band the Zombies on their debut album The Zombies in 1965. It peaked at No. 6 on the Billboard Hot 100 chart in the United States in March 1965 and was one of three big American hits by the Zombies. "Tell Her No" was only a minor hit for the Zombies in their native Britain, where it peaked at No. 42 on the UK Singles Chart in February 1965.

Rodney Terence Argent is an English musician. In a career spanning more than 50 years, Argent came to prominence in the mid-1960s as the keyboardist, founder and leader of the rock band the Zombies, and went on to form the band Argent after the first break-up of the Zombies.