Alcaeus may refer to:
People Alcaeus of Mytilene ( – BC), a Greek lyric poet Alcaeus (comic poet) (fl. 388 BC), a Greek Old Comedy poet Alcaeus of Messene (late 3rd/early 2nd century BC), a Greek epigrammatist Alcaeus and Philiscus (fl. 2nd-century BC), two Epicurean philosophers expelled from Rome in either 173 BC or 154 BC
Other Alcaeus (bug), a genus of stink bugs in the family Pentatomidae Alcaeus (mythology), several figures of this name in Greek mythology 12607 Alcaeus, a main belt asteroid
See also
Alcaea