Inaldo Justino de Sena (born 18 June 1971) is a Brazilian former male track and field sprinter who specialised in the 400 metres.

Sena had a highly successful junior career, starting with a 400 m gold at the 1986 South American Youth Championships in Athletics.

On home soil in Manaus, he won the 400 m final in 46.54 seconds before teaming up with Eronilde de Araújo to win the 4 × 400 metres relay.

[6] An attempted defence of his titles at the 1992 Ibero-American Championships in Athletics resulted in silver medals: he was beaten in the individual event by compatriot Sidnei Telles de Souza and by a strong Cuban team in the relay.

[7] He won the first and only global medal of his career in this period, taking bronze for the Americas team at the 1994 IAAF World Cup,[8] and also coming fifth in the relay.