- A Valentine, a poem by Barcroft Henry Thomas Boake
- A Valentine (1869), a poem by Lewis Carroll
- A Valentine, a poem by Florence Earle Coates from Poems (1898)
- A Valentine, a poem by Eugene Field
- A Valentine (1849), a poem by James T. Fields
- A Valentine (1846),a poem by Edgar Allan Poe
- "A Valentine" by Mary T. Reiley in Littell's Living Age, 143 (1852) (1879)
- A Valentine, a poem by Albert Henry Wratislaw
- "Pope Valentine," in Catholic Encyclopedia, (ed.) by Charles G. Herbermann and others, New York: The Encyclopaedia Press (1913)
- Valentine, a poem by Elinor Wylie
- "Valentine," in A Cyclopaedia of Female Biography, (ed.) by H. G. Adams, London: Groombridge and sons (1857)
- "Valentine," in The New Student's Reference Work, Chicago: F.E. Compton and Co. (1914)
- "Valentine," in Encyclopædia Britannica (11th ed., 1911)