| William Pinckney McLean | |
| Office: | Railroad Commissioner of Texas |
| Term Start: | June 10, 1891 |
| Term End: | November 20, 1894 |
| Governor: | Jim Hogg |
| Predecessor: | Office established |
| Successor: | Leonidas Jefferson Storey |
| State1: | Texas |
| District1: | 2nd |
| Term Start1: | March 4, 1873 |
| Term End1: | March 3, 1875 |
| Predecessor1: | John C. Conner |
| Successor1: | David B. Culberson |
| State House2: | Texas |
| District2: | 9th |
| Term Start2: | February 8, 1870 |
| Term End2: | January 14, 1873 |
| Preceded2: | J. R. Lyons |
| Succeeded2: | Robert Lee Moore |
| State House3: | Texas |
| District3: | 62nd |
| Alongside3: | F. M. Taylor |
| Term Start3: | November 4, 1861 |
| Term End3: | January 7, 1862 |
| Preceded3: | William Henry Stewart |
| Succeeded3: | Jacob B. Reid |
| Birth Date: | 9 August 1836 |
| Birth Place: | Copiah County, Mississippi, U.S. |
| Death Place: | Fort Worth, Texas, U.S. |
| Party: | Democratic |
| Alma Mater: | University of North Carolina at Chapel Hill |
| Allegiance: | Confederate States of America |
| Branch: | Confederate States Army |
| Battles: | American Civil War |
| Rank: | Major |
| Unit: | 19th Texas Infantry Regiment |
William Pinckney McLean (August 9, 1836 – March 13, 1925) was a United States Representative from Texas.
Born in Copiah County, Mississippi, McLean moved with his mother to Marshall, Texas, in 1839.He attended private schools and was graduated from the law department of the University of North Carolina at Chapel Hill in 1857 and was admitted to the bar the next year. McLean commenced the practice of his profession at Jefferson, Texas.He became a member of the Texas House of Representatives in 1861. McLean resigned to enter the Confederate States Army as a private of the 19th Texas Infantry Regiment, in the third brigade of Walker's Texas Division.He was promoted to captain and then major, and served throughout the Civil War.In 1869, he was elected again as a state representative.
McLean was elected as a Democrat to the 43rd United States Congress. He was not a candidate for renomination in 1874 and resumed the practice of law in Mount Pleasant, Texas. In 1875, he was a member of the State constitutional convention.
McLean was elected judge of the fifth judicial district in 1884, but declined to be a candidate for reelection. He was appointed by Governor Hogg as a member of the first State railroad commission in 1891.[1] After leaving office, McLean moved to Fort Worth, Texas and resumed the practice of his profession.He died in Fort Worth on March 13, 1925.