Lothar Meggendorfer (6 November 1847 in Munich – 7 July 1925 in Munich) was a German illustrator and early cartoonist known for his pop-up books.
He was first published in 1862 in the Fliegende Blätter, an illustrated comic weekly, and from 1868 in the bi-weekly Münchener Bilderbogen. He was the publisher of Meggendorfer-Blätter, an art and satirical magazine, from 1888 to 1905. He also illustrated a number of books with text by , among them Neues Struwwelpeterbuch published by J.F. Schreiber in the 1890s, and created some 40 board games.
Every other year, the Movable Book Society awards a pop-up book prize named after Meggendorfer.