Paseas was a tyrant of the ancient Greek city-state of Sicyon in the 3rd century BC. He succeeded his son, Abantidas, in 252 BC. However, he was assassinated by Nicocles in 251 BC.

Pausanias 2.8:

A few years afterwards Abantidas became tyrant. Before this time Cleinias had met his death, and Aratus went into exile, either of his own accord or because he was compelled to do so by Abantidas. Now Abantidas was killed by some natives, and his father Paseas immediately became tyrant.

He was killed by Nicocles, who succeeded him