Leon's Frozen Custard is a classic family-owned drive-in, specializing in frozen custard, located in Milwaukee, Wisconsin. Opened in 1942, its current appearance as a "drive-in restaurant" comes from an early1950s remodel. It is considered a landmark in the city of Milwaukee. A restaurant operating under the same name exists in Oshkosh, Wisconsin. Originally opened by family members of the first store's owner, it has since been sold; this led to litigation in the early 1990s over what items the Oshkosh store was allowed to sell.