Marcus Aemilius Lepidus the Younger or Marcus Aemilius Lepidus Minor (died 30 BC) was a son of triumvir Marcus Aemilius Lepidus and his wife Junia Secunda, a half-sister of Caesar's assassin and friend Brutus. Lepidus was executed by Octavian, the future Roman Emperor, in 30 BC, as a leader in a conspiracy against him. Velleius says that his wife Servilia committed suicide after her husband's death by swallowing burning hot coals. Lepidus had at least one younger brother and possibly a sister. He was likely the son whom his father had once engaged to Mark Antony's eldest daughter Antonia. He sat in the Roman Senate and was married to Servilia, who may have been the daughter of the Caesarian P. Servilius Isauricus and Junia Prima, his aunt.