The 1899 Wisconsin Supreme Court elections were held during Wisconsin's 1899 spring election and featured two elections: a regular election and a special election. In both elections, incumbents were re-elected without opposition.
The 1899 Wisconsin Supreme Court election was held to elect a justice to a full ten-year term. Incumbent justice John B. Cassoday was re-elected unopposed.
The 1899 Wisconsin Supreme Court special election was a special election that saw incumbent justice Joshua Eric Dodge (appointed to fill the seat left vacant by Silas U. Pinney) elected unopposed to complete Pinney's term.