Orville Charles Pratt (April 24, 1819 – October 1891) was an American jurist and attorney.

[2] In California, Pratt practiced law in a partnership with Alex Campbell before being elected as judge of the twelfth judicial district.

[7] While in that office, he ruled in favor of Charlotte L. Brown in her lawsuit against a San Francisco streetcar company after she was ejected for being African-American, helping to end what he termed the "barbaric practice" of racial segregation.

[2] His wife had discovered Pratt was having an affair, and in order to avoid prosecution for adultery he agreed to the large divorce settlement.

[2] In 1886, the University of Oregon granted Pratt an honorary doctor of laws degree.