Around the globe, كلاي (Clay 
, Klay , كلاي 
) is a common masculine given name. The first name كلاي is habitual in Saint Lucia, where it is quite a common boy's name, Tunisia, where it is quite a common principally boy's, but scarcely girly name, and the United States, where it is quite a rare masculine name. In absolute terms, it most frequently occurs in the United States, Tunisia, and the Democratic Republic of the Congo. Likewise, كلاي is the last name as well as the forename.
كلاي is also a popular name for the fictitious and mythical characters: Clay Kaczmarek , the Assassin's Creed character, Assassin's Creed II; Odd Man , the fictional comic book hero created by Steve Ditko; Clay Morrow , the fictional character in the FX television series Sons of Anarchy; Clay Davis , the character from The Wire and Clay Jensen , the fictional character in the novel Thirteen Reasons Why and its television adaptation, 13 Reasons Why, and in many other works.