Claus Pavels Riis (February 19, 1826 – October 8, 1886) was a Norwegian author.
He was born in Bergen and was the grandson of the priest and bishop Claus Pavels.
During his lifetime, he was a popular author of plays and student songs under the pseudonym Crispinus[1][2] before he settled in Tysnes as a landowner and gardener.
This work was the basis for the silent comedy film Til sæters, which premiered in 1924.
Claus Pavels's diaries are an important contribution to Norwegian historiography from circa 1814.