Posthumus, a character in Shakespeare's play, Cymbeline

Posthumous name, an honorary name given to a person who has died

E.S. Posthumus, an independent music group that produces cinematic music

Posthumous execution, ceremonial execution of someone already dead

Posthumous recognition, an award given after death

"Posthumus Zone", a song by E.S. Posthumus

Posthumous promotion, a promotion given after death

Dick Posthumus, prominent Michigan politician

Posthumous (EP), an EP by The Banner

Posthumous Diary, a book by Italian poet Eugenio Montale

Postumus, a Roman Emperor of Batavian stock