Samuel Morrison Dungan (July 29, 1866 – March 16, 1939) was a professional baseball player, principally an outfielder, but also a catcher and first baseman, for 16 years from 1890 to 1905.
A California native, he attended Michigan State Normal School from 1886 to 1888 and began playing professional baseball with the Oakland Colonels in 1890.
After winning the California League batting title in 1890, he played in Major League Baseball for Cap Anson's Chicago Colts from 1892 to 1894.
He played six seasons from 1894 to 1899 for the Detroit Tigers of the Western League, led the team in batting each year, hit .447 in 1894, .424 in 1895, .372 in 1897, and won the Western League batting title in 1899.
In 1900, he played for the Kansas City Blues of the newly established American League, compiling a .350 batting average to become the first American League batting champion.
In 1901, the American League became a major league, and Dungan hit .320 (10th best in the league) for the Washington Senators.
He concluded his professional baseball career playing for the Milwaukee Brewers of the American Association (1902–1903) and Memphis Egyptians of the Southern Association (1903–1905).
After retiring from baseball, Dungan returned to Orange County, California, where he lived for the rest of his life, having homes in Laguna Beach and Santa Ana.
He was an orange grower and owned property in Talbert (now known as Fountain Valley) and Lemon Heights (now known as North Tustin).