Sean was an Human male name, originating from Ireland.
In 2373, Miles and Keiko O'Brien were considering naming their second child Sean. However, in the Bajoran language, "Sean" meant "swamp". While discussing this in the Replimat, Odo mentioned the Bajoran meaning, prompting Benjamin Sisko to ask if they knew that. Odo replied that he doubted that, causing Sisko to remark that someone ought to tell them. Odo then responded "I nominate you." (DS9: "Let He Who Is Without Sin...")