Poet
A poet was a writer who specialized in the art of poetry.
According to Gideon Seyetik, "A great terraformer needs the green thumb of a gardener, the eye of a painter and the soul of a poet." (DS9: "Second Sight")
Poets
Singh el Bashir was a 15th century poet from Earth. (DS9: "Statistical Probabilities")
William Shakespeare was a famous Human poet. (TOS: "By Any Other Name")
Akorem Laan was a Bajoran poet who lived in the 22nd century. By 2372, he was considered one of Bajor's greatest poets. (DS9: "Accession")
G'trok was a Klingon poet who wrote The Fall of Kang, which, in the mid-24th century, was required reading at Starfleet Academy. (DS9: "Second Sight")