- Plautus, Titus Maccius Plautus - comic dramatist of ancient Rome (253?-184 BC)
--1 is a kind of dramatist, playwright
- Plautus, genus Plautus - a genus of Alcidae
--2 is a kind of bird genus
--2 is a member of Alcidae, family Alcidae
--2 has members: little auk, dovekie, Plautus alle