William Woodburn (April 14, 1838 – January 15, 1915) was an American politician and a member of the United States House of Representatives from Nevada. He immigrated with his parents to the United States in 1849. He attended St. Charles College, Maryland, studied law, and was admitted to the bar in 1866. He commenced the practice of law in Virginia City, Nevada. In 1871 and 1872, he was the district attorney of Storey County, Nevada.

William Woodburn
12th Attorney General of Nevada
In office January 15, 1901 – January 5, 1903
Governor	Reinhold Sadler
Preceded by	William D. Jones
Succeeded by	James G. Sweeney
Member of the U.S. House of Representatives from Nevada's At-Large district
In office March 4, 1885 – March 3, 1889
Preceded by	George Williams Cassidy
Succeeded by	Horace F. Bartine
In office March 4, 1875 – March 3, 1877
Preceded by	Charles West Kendall
Succeeded by	Thomas Wren
Personal details
Born	(1838-04-14)April 14, 1838 County Wicklow, Ireland
Died	January 15, 1915(1915-01-15) (aged 76) Carson City, Nevada
Political party	Republican
Residence	Virginia City
Profession	Attorney

William Woodburn was elected as a Republican to the Forty-fourth Congress, which met from March 4, 1875, to March 3, 1877. He was later elected to the Forty-ninth and Fiftieth Congresses, and he served from March 4, 1885, to March 3, 1889. He resumed the practice of his profession in Virginia City, Nevada. He was an unsuccessful candidate for election in 1892 to the Fifty-third Congress. He was appointed Attorney General of Nevada by Governor Reinhold Sadler on January 15, 1901, succeeding William D. Jones who resigned to become a state district court judge. Woodburn served the remainder of Jones' term which expired in January 1903, and returned to private practice.

Woodburn died on January 15, 1915, in Carson City, Nevada. He was interred in St. Theresa Cemetery.