William N. Andrews (November 13, 1876 - December 27, 1937) was a Congressman for the 1st congressional district of Maryland who served one term from 1919 to 1921.
Andrews was born in Hurlock, Maryland and attended Dixon College as a youth. He graduated from Wesley Collegiate Institute of Dover, Delaware in 1898 and from the law department of the University of Maryland at Baltimore in 1903. He was admitted to the bar in 1903 and commenced the practice of law in Cambridge, Maryland soon after.
From 1904 to 1911, Andrews served as State attorney for Dorchester County, Maryland. He served as a member of the Maryland House of Delegates in 1914, and in the Maryland State Senate from 1918 until 1919, when he resigned to enter Congress. He was elected as a Republican to the U.S. Congress in 1918, and served the 1st Congressional district of Maryland for one full term from March 4, 1919 to March 3, 1921. He was an unsuccessful candidate for reelection in 1920, and resumed the practice of law until his death in Cambridge. He is interred in Washington Cemetery of Hurlock, Maryland.