There isn't a widely recognized god named Leo in major pantheons like Greek, Roman, Egyptian, Norse, or Hindu mythology.
It's possible that:
* A lesser-known deity: A deity with a similar name or associated with lion symbolism might exist in a smaller or regional pantheon.
* Modern interpretations: Some modern pagan or Wiccan traditions might incorporate a deity figure named Leo or associate the name with qualities like strength, courage, or leadership, traits often associated with lions.
* Misinterpretation: The name "Leo" (Latin for lion) might be mistakenly taken as a deity's name due to its symbolic association with lions in various cultures.
Without further context or a specific cultural reference, it's difficult to say definitively whether a god called Leo exists.