From March 6 to May 18, 1928, voters of the Republican Party chose its nominee for president in the 1928 United States presidential election. The nominee was selected through a series of primary elections and caucuses culminating in the 1928 Republican National Convention held from June 12 to June 15, 1928, in Kansas City, Missouri.

From March 12 to June 7, 1924, voters of the Republican Party chose its nominee for president in the 1924 United States presidential election. Only 17 states held Republican primaries that year, with most states selecting Convention delegates through caucuses and state-level conventions. Delegates chose through the primary process attended the 1924 Republican National Convention held from June 10 to June 12, 1924, in Cleveland, Ohio.