Thinker
Thinker or The Thinker may refer to:

 The Thinker, a bronze sculpture by Auguste Rodin
 The Thinker: Portrait of Louis N. Kenton, a 1900 oil painting by Thomas Eakins
 Thinker (DC Comics), five fictional, telepathic supervillains
 The Thinker (horse) (1978–1991), an Irish–British racehorse
 Ulmus parvifolia 'The Thinker', a Chinese elm cultivar
 Karditsa Thinker, Neolithic clay figurine at the National Archaeological Museum of Athens
 Thinker from Yehud,  Middle Bronze Age II Palestine clay figurine at the Israel Museum
 The Thinker and the Sitting Woman,  ancient Neolithic figurine is believed to date back to the Hamangia culture

See also
 Mad Thinker, a robotics genius supervillain in the fictional Marvel Universe