Holy Trinity Orthodox Cathedral
Chicago, Illinois
Holy Trinity Orthodox Cathedral is located at 1121 North Leavitt Street in Chicago, Illinois. The cathedral was designed by renowned architect Louis H. Sullivan and is listed on the National Register of Historic Places as of 1976. It was designated an official City of Chicago Landmark in 1979. The cathedral has been recognized as one of Chicago's Most Interesting Churches by CBS 2 Chicago and featured in Chicago Magazine's Insider's Guide to Ukrainian Village. The parish operates a mission to serve as the Beacon of Orthodoxy in Chicago. The cathedral offers guided tours on selected Saturdays and can accommodate private and group tours by special appointment. The interior features an iconostasis, altar with furnishings, bells, candles with symbolic meaning, a sacristy and vestry, and clergy. The cathedral also operates a kitchen-based ministry that serves neighbors.
Denomination
CatholicPhone
773-486-6064Languages
English, Russian, GermanLast updated August 2026
1,000-5,000
estimated members
This is likely one of 335 Catholic congregations in Cook County, IL. Catholic accounts for 53% of the county's 3,534 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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