Worth House is a historic residence in the Mount Auburn neighborhood of Cincinnati, Ohio, United States.

Located atop a hill along Auburncrest Avenue,[2] the house was built in 1819 in a version of the Federal style of architecture.

He had settled in Hamilton County one year previously, having been named the cashier of the Cincinnati branch of the Bank of the United States.

[2] The design of the main entrance closely resembles that of the grand Baum-Taft House in Lytle Park, which was constructed in the following year.

After the McGregors, the house was home to the family of Guy Ward Mallon, a significant figure in the history of Ohio's political structure; he was responsible for introducing the Australian ballot into Ohio elections, for pioneering the effort to reorganize Cincinnati's city charter, and for writing a popular guide to elections.