The Cronulla Sharks have hit captain Paul Gallen with a $10,000 fine after being handed with an infringement notice for public urination on the weekend.

Half of Gallen's fine is suspended on a good behaviour bond that will remain for the rest of his contract. He has apologised, noting the incident as "embarrasing".

Public urination has become a common incident with Rugby League players this season. Roosters forward Willie Mason, along with Storm pair Brett Finch and Cooper Cronk have all been fined by their clubs for publicly urinating.