A Latin mnemonic verse or mnemonic rhyme is a mnemonic device for teaching and remembering Latin grammar. Such mnemonics have been considered by teachers to be an effective technique for schoolchildren to learn the complex rules of Latin accidence and syntax. One of their earliest uses was in the Doctrinale by Alexander of Villedieu written in 1199 as an entire grammar of the language comprising 2,000 lines of doggerel verse. Various Latin mnemonic verses continued to be used in English schools until the 1950s and 1960s.
Authors who have borrowed Latin mnemonics from Latin textbooks for their own works include Thomas Middleton and Benjamin Britten. For example, in Britten's opera The Turn of the Screw, he used the words of a Latin mnemonic that he had found in a Latin grammar book belonging to Myfanwy Piper's aunt for Miles' "malo" song.
Jacques Brel wrote a song in 1962 about a Latin mnemonic verse. Some mnemonics have been recited to hymn tunes.