Speculative poetry is a genre of poetry that focusses on fantastic, science fictional and mythological themes. It is also known as science fiction poetry or fantastic poetry. It is distinguished from other poetic genres by being categorized by its subject matter, rather than by the poetry's form. Suzette Haden Elgin defined the genre as "about a reality that is in some way different from the existing reality."

Due to the similarity of subject matter, it is often published by the same markets that publish short stories and novellas of science fiction, fantasy and horror, and many authors write both in speculative fiction and speculative poetry. The field has one major award, the Rhysling Award, given annually to a poem of more than fifty lines and to a sub-fifty lines poem by the US-based Science Fiction Poetry Association.