William Russell Roesch (born July 1865) was the first mayor of Eau Gallie, Florida.

He was the founder and editor of the newspaper The Eau Gallie Record.

In 1913, President Woodrow Wilson appointed Roesch postmaster of Eau Gallie, and reappointed him in 1918.

Roesch was also member of the local volunteer fire department.

He turned over the day-to-day operations of the newspaper to his son, William Phillip Roesch, when he became Eau Gallie's mayor.