While Minions don’t speak an actual language, minionese, as it came to be known, is a combination of multiple languages- English, Filipino, French, Hindi, Korean, and even Spanish.
For example, they say Banana a lot to mean food and use words like ‘poulet tiki masala’- a combination of the French word for chicken and an Indian chicken dish. When the Minions count, however, they do it in Korean and use ‘gelato’ to mean ice cream.