- Impromptu, 1823 poem by George Gordon Byron
- Impromptu, 1881 poem by Louis-Honoré Fréchette
- Impromptu, 1887 poem by Roderick J. Flanagan
- Impromptu, 1922 poem by John Gould Fletcher
- Impromptu, a poem by Mattie Griffith
- Impromptu (You say you're glad I write—oh, say not so), a poem by Frances Anne Kemble
- Impromptu (Thou who within thyself dost not behold), a poem by Frances Anne Kemble
- Impromptu, a poem by Eliza Gabriella Lewis
- Impromptu, a poem by Mary Russell Mitford
- Impromptu (Were I a gay lover, sweet Eveline dear), a poem by Maria Theresa Rice
- Impromptu (No regrets, when thou art leaving), a poem by Maria Theresa Rice