Yes, Lileep can be shiny in Pokémon Go! Neither of these Pokémon are going to see much use as attackers, gym defenders, nor PvP Pokémon, but getting a shiny is still nice for your collection.

Normal (left) vs Shiny (right). Credit reddit user skinnysnorlaz They won't appear as a different colour in the field, so you have to attempt to catch them first. They of course can also appear in ...