Robert Beecher Howell (January 21, 1864 – March 11, 1933) was an American politician.

He was elected to the state senate in 1902 to 1904, and then served on the Omaha Water Board and its successor, the Metropolitan Utilities District from 1904 to 1923, of which he was the chair from 1912 to 1923.

After an unsuccessful bid for Governor of Nebraska in 1914, he served as a lieutenant in the United States Naval Reserve Force from 1917 to 1923.

In 1921, he became the chairman of the radio commission in the United States Post Office Department.

He was elected to the United States Senate in 1922, where he served until March 11, 1933, when he died in office.