The Dr. J. W. S. Gallagher House is a 1913 Prairie School house in Winona, Minnesota, United States, designed by the architectural firm of Purcell & Elmslie.

The house was listed on the National Register of Historic Places in 1984 for having local significance in the theme of architecture.

[2] The Dr. J. W. S. Gallagher House is essentially rectangular, with a gabled porch on the side and another on the rear.

It is two stories with side gables, a low-pitched roof, and wide eaves.

[4] It was nominated for being a well-preserved example of the modest residential commissions that typified Purcell & Elmslie's work, despite their acclaim for more prominent projects such as Merchants National Bank in downtown Winona.