Don Cesar may refer to:

• Don Cesar, an alternative name for the 1844 play Don César de Bazan by Adolphe d'Ennery and Dumanoir
• Don Cesar (Dellinger), an 1885 operette by Rudolf Dellinger based on the play by d'Ennery and Dumanoir
• Don César de Bazan, an 1872 opera by Jules Massenet based on the play by d'Ennery and Dumanoir
• Don César a spanilá Magelona, an 1852 opera by František Škroup
• Don Cezar od Bazana, an 1877 play by Nikola Kokotović

• Don Cesar, Count of Irun, a 1918 Austrian silent film based on the play by d'Ennery and Dumanoir
• Don Cesare di Bazan, a 1942 Italian film based on the play by d'Ennery and Dumanoir

• Don Cesar, a character in the 1803 play The Bride of Messina by Friedrich Schiller
• Don Cesar, a character in the 1825 play Love's Victory by George Hyde
• Don Cesar, a character in the 1838 play Ruy Blas by Victor Hugo
• Don Cesar, a character in the 1845 opera Maritana by William Vincent Wallace; also based on the play by d'Ennery and Dumanoir
• Don Cesar, a character in the 1884 opera The Bride of Messina by Zdeněk Fibich
• Don Cesar, a character in the 1894 opera Donna Diana by Emil von Reznicek
• Don Cesar, a character in the 1927 film Yo soy tu padre
• Don Cesar, a character in the 1944 film The Lieutenant Nun
• Don César, a character in the 1950 film Nobody's Wife
• Don Cesar, a character in the 1956 film Afternoon of the Bulls
• Don Cesar, a character in the 1971 film Delusions of Grandeur
• Don Cesar, a character in the 1994 telenovela Imperio de cristal
• Don Cesar, a character in the 2008 telenovela Un gancho al corazón
• Don Cesar Alcazan, a character in the 1952 film The Dream of Zorro
• Don Cesar de Achával y Acháva, a character in the 1978 film La comadrita
• Don César de Bazan, a character in the 1948 film Ruy Blas
• Don Cesar de Echague, a character in the 1956 film The Coyote's Justice
• Don Cesar de Vega (a.k.a Zorro), a character in the 1925 film Don Q, Son of Zorro
• Don Cesar Zaragoza, a character in the 2010 Philippine television drama Kristine

• Don César de Echagüe, a 1946 novel featuring the El Coyote (character)
• The Don CeSar, a historic hotel in Florida