A nursery rhyme was a traditional children's song.

Zagreus was a character from a Gallifreyan nursery rhyme. (AUDIO: Seasons of Fear ^[+]Paul Cornell and Caroline Symcox, Main Range (Big Finish Productions, 2002)., Neverland ^[+]Alan Barnes, Main Range (Big Finish Productions, 2002)., Zagreus ^[+]Alan Barnes and Gary Russell, Main Range (Big Finish Productions, 2003).)

In the Death Zone, the Second Doctor recalled an old nursery rhyme about the Dark Tower which described the different ways to enter it. (TV: The Five Doctors ^[+]Terrance Dicks, Doctor Who 20th Anniversary Special (Public Broadcasting Service, 1983).)

Jo Grant recited nursery rhymes to keep the Master from hypnotising her. The Master said he was never very fond of nursery rhymes. (TV: Frontier in Space ^[+]Malcolm Hulke, Doctor Who season 10 (BBC1, 1973).)

On Nooma, the Third Doctor claimed that eeny, meeny, miny, moe was an old Venusian nursery rhyme. (PROSE: Speed of Flight ^[+]Paul Leonard, Virgin Missing Adventures (Virgin Books, 1996).)

In 200,100, Rodrick only knew that the Bad Wolf Corporation was named after an Old Earth nursery rhyme; Rose Tyler, however, knew that it meant something more. (TV: Bad Wolf ^[+]Russell T Davies, Doctor Who series 1 (BBC One, 2005).)

The Twelfth Doctor recited a nursery rhyme while on the last planet at the end of the universe. (TV: Listen ^[+]Steven Moffat, Doctor Who series 8 (BBC One, 2014).)

As children, Kate Stewart and her friend Ben Donelly would regularly run up and down the long gallery at Ealsdon House singing a nursery rhyme about a ghost that haunted the place called the Grey Man. (AUDIO: Invocation ^[+]Error: Code 2 - no data stored in variables, cache or SMW.)