fiddlerPronunciation: /ˈfɪdlə/Translate fiddler | into German | into Spanish Definition of fiddler noun 1 informal a person who plays the violin, especially one who plays folk music. 2British informal a person who cheats or swindles, especially one indulging in petty theft. Origin: Old English fithelere, from fithele (see fiddle)fiddler in other Oxford dictionaries Definition of fiddler in the US English dictionary