Lyman C. Pettit (October 1868 in Northumberland, New York – March 8, 1950 in Lockport, New York) was the founder and first president of the Pentecostal Collegiate Institute (now Eastern Nazarene College); the founding pastor of both the Congregational Methodist Church of Saratoga Springs, and the First People's Church of Brooklyn, New York; and an ordained clergyman who pastored churches in the Methodist Episcopal Church, the Association of Pentecostal Churches of America (a forerunner to the Church of the Nazarene), and the Presbyterian Church in the United States of America.
Lyman Clayton Pettit was born in Northumberland, New York in October 1868, the oldest child of Orville Daniel Pettit (born October 1832 in Saratoga, New York; died 25 May 1905 in Northumberland, New York), a retail grocer; and Sarah Frances Robinson Pettit (born July 1849 in Brownville, New York; died about 27 April 1922 in Northumberland, New York), who had married on 6 September 1866 at the Reformed Protestant Dutch Church of Gansevoort, New York. After the birth of their oldest child, Orville and Sarah had four more children: Charles Warren Pettit (born 10 May 1869 in Gansevoort, New York; died 20 November 1931 in Middleport, New York). Myra Pettit (born 1871); Orville Bertrum "Bertie" Pettit (born 7 October 1873; died 21 March 1941); and Alvadore "Allie" Franklin Pettit (born 10 August 1878; died 13 September 1956).