Omeyer & Thori was an architectural partnership of Diedrik A. Omeyer (1850-1907) and Martin P. Thori (1864-1905). The two were immigrants from Norway.
A number of the firm's and its individual partners' works are listed on the National Register of Historic Places.
Works include (with attribution):
William H. and Ida Garland House, 846 W. Fairmount Ave., St. Paul "a typically florid production of Norwegian Americans Omeyer and Thori"Arcadia Free Public Library, 406 E. Main St. Arcadia, WI (Omeyer, Diedrik A.), NRHP-listedBank of Long Prairie, 262 Central Ave. Long Prairie, MN (Omeyer & Thori), NRHP-listedOld Main (Augsburg College), 731 21st Ave., S. Minneapolis, MN (Omeyer,Didrik A.; Thori,Martin P.), NRHP-listedNorman County Courthouse, 16 E.3rd Ave. Ada, MN (Omeyer & Thori), NRHP-listedOld Main, Augustana Academy, Lawler and Second Sts. Canton, SD (Omeyer & Thori), NRHP-listedPark Region Luther College, 715 W. Vernon Ave. Fergus Falls, MN (Omeyer & Thori), NRHP-listedSteensland Library-St. Olaf College, Off St. Olaf Ave. Northfield, MN (Omeyer & Thori), NRHP-listedUnited Church Seminary, 2481 Como Ave. St. Paul, MN (Omeyer,Didrik A.; Thori, Martin P.), NRHP-listedAda Village Hall, 404 W. Main St. Ada, MN Thori, Martin P., et al.William E. Coleman House, 500 Missouri Ave. Deer Lodge, MT Ameryre & ThorieCottonwood County Courthouse, 900 3rd Ave. Windom, MN O'Meyer & ThoriMetropolitan Opera House (Iowa Falls, Iowa), 515 Washington St. Iowa Falls, IA O'Meyer & ThoriNerstrand City Hall, Main St. Nerstrand, MN Thori,Alban, & FisherSteensland Library-St. Olaf College, Off St. Olaf Ave. Northfield, MN Omeyer & ThoriOne or more works in Northwood Central Avenue Historic District, roughly, Central Ave. W near 5th St. to 9th St. on the East Northwood, IA (Omeyer and Thori), NRHP-listed
