Robert Achille Schiller (November 8, 1918 – October 10, 2017) was an American screenwriter.
He worked extensively with fellow producer/screenwriter Bob Weiskopf on numerous television shows in the United States, including I Love Lucy (1955–1957) and All in the Family (1977–1979) on the CBS network.
For the latter series, he received an Emmy Award in 1978 as one of the writers of the episode "Cousin Liz."
His second wife was American politician, actress and attorney Sabrina Scharf.