Geoffrey Chaucer was an English author, poet, philosopher, bureaucrat courtier, and diplomat. Chaucer may also refer to:

Thomas Chaucer (circa 1367-1434), Speaker of the British House of Commons

Chaucer College, an independent graduate college

Chaucer Elliott (1879-1913), Canadian sportsman

Chaucer (crater), a lunar crater

2984 Chaucer, a small main belt asteroid

Chaucer Secondary School, a Yorkshire school