Holy Trinity Church, also known as Old Swedes, is a historic church at East 7th and Church Street in Wilmington, Delaware. It was consecrated on Trinity Sunday, June 4, 1699, by a predominantly Swedish congregation formerly of the colony of New Sweden. The church, designated a National Historic Landmark in 1961, is among the few surviving public buildings that reflect the Swedish colonial effort. The church is considered part of First State National Historical Park. The church, which is often visited by tourists, remains open for tours and religious activities.