Ryckman is a surname from Old German with a meaning related to "power"; English versions of the surname include Rickman and Rick. "Ryckman" is also a Dutch surname arising as a nickname for a rijc man (rich man).
Among the notable people who share this surname are (organized by birth century):
17th CenturyAlbert Janse Ryckman (1642–1737), American businessman and politician19th CenturyEdmond Baird Ryckman (1866–1934), Canadian politicianSamuel Shobal Ryckman (1849–1929), Canadian businessman and politician20th CenturyBilly Ryckman (b.1955), former professional American football playerLarry Ryckman (b.1959), Canadian-American entertainment, technology and sports entrepreneurMark Ryckman (b.1970), American civil-servantMary Ryckman, American civil-servantRon Ryckman (b. 1947), American politicianRon Ryckman, Jr., American politician