Albert Grisar (born in Antwerp on December 26, 1808 – died in Asnières on June 15, 1869) was a Belgian composer.
Grisar studied in Antwerp, in Paris (under Anton Reicha), and, in the mid-1840s, in Naples with Saverio Mercadante. He was a successful comic opera composer, first winning success in Brussels in 1833 and in Paris later in the decade. He collaborated with Flotow on L'eau merveilleuse (1839) and with François-Adrien Boieldieu on L'opéra à la cour (1840). His Parisian works of the late 1840s and early 1850s were particularly well received by audiences.