Robert Daniel San Souci (October 10, 1946 – December 19, 2014) was a multiple award-winning children's book author, who resided in San Francisco, California.
He often worked with his brother, Daniel San Souci, a children's book illustrator.
He was a consultant to Disney Studios and was instrumental in the production of the film Mulan, for which he wrote the story.
He studied folklore in graduate school.
He died after suffering a head injury while falling from a high height in San Francisco in December 2014.