Aloysius is a male given name.

Aloysius may also refer to:

Aloysius (song), song by Scottish alternative rock band Cocteau Twins Aloysius (teddy bear), the Lord Sebastian Flyte's teddy bear in Evelyn Waugh's novel Brideshead Revisited, published in 1945 Bobby Aloysius (born 1974), Indian athlete

See also

Aloisio St Aloysius (disambiguation)