Royal Tyler Sprague (January 23, 1814 – February 24, 1872)[1] was the 11th Chief Justice of California.

After arriving in California in September 1849, Sprague worked a claim on Clear Creek on the Sacramento River.

In 1852, he was elected to the California State Senate representing the 18th District, and in 1855 served as its President pro tempore.

[4] In 1867, Sprague was elected to the Supreme Court of California as a Democrat;[5] he was chosen to be Chief Justice in January 1872 and died the next month.

[9] A collection of his journals is in the Bancroft Library at the University of California, Berkeley.