The Leonidas  is an armoured personnel carrier produced by the Greek vehicle manufacturer ELBO. It is named after Leonidas, the king of the ancient city-state of Sparta.

The first version of the Leonidas was the Austrian (Saurer/Steyr) 4K 7FA Armoured Personnel Carrier built with minor modifications by the Greek company from 1981 until 1987 (when it was still called Steyr Hellas S.A.).

Initial Greek involvement was essentially assembly, however it progressively increased up to complete manufacture. The APC had a 320hp engine and a weight of 14.8 tons. About 700 were produced.

The 'Leonidas-2' development involved extensive modification of the previous model, done by ELBO itself in 1987 with the aim to essentially develop it as an Armoured Infantry Fighting Vehicle (AIFV).