Jaroslava Muchová Syllabová (15 March 1909, New York, United States - 9 November 1986, Prague, Czechoslovakia) was a Czech painter, the daughter of painter Alphonse Mucha and the sister of writer and translator Jirí Mucha.
Austrian-Czech poster artist, lithographer, photographer, graphic designer, painter and postage stamp designer Czechoslovak photographer, painter, illustrator and patriot. Apart from his artistic production he was an advocate for the unification of Czekoslovakia for which he designed the first banknotes in 1918.