This is a list of the National Register of Historic Places listings in Auglaize County, Ohio.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Auglaize County, Ohio, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a Google map.^[1]

There are 24 properties and districts listed on the National Register in the county, including 1 National Historic Landmark.

          This National Park Service list is complete through NPS recent listings posted January 26, 2024.^[2]

Current listings

[3]	Name on the Register[4]	Image	Date listed[5]	Location	City or town	Description
1	Auglaize County Courthouse		May 7, 1973 (#73001387)	Courthouse Sq. 40°34′06″N 84°11′40″W / 40.568333°N 84.194444°W / 40.568333; -84.194444 (Auglaize County Courthouse)	Wapakoneta
2	Blume High School	More images	August 22, 1996 (#96000933)	405-409 S. Blackhoof St. 40°33′58″N 84°11′50″W / 40.566111°N 84.197222°W / 40.566111; -84.197222 (Blume High School)	Wapakoneta
3	Adolph Boesel House		November 29, 1979 (#79001784)	110 S. Franklin St. 40°26′04″N 84°23′01″W / 40.434444°N 84.383611°W / 40.434444; -84.383611 (Adolph Boesel House)	New Bremen	Destroyed.[6] The house was moved to 400 Easthaven Dr., New Bremen, Ohio
4	Julius Boesel House		March 30, 1978 (#78002008)	North of New Bremen on Quellhorst Rd. 40°26′56″N 84°22′40″W / 40.448889°N 84.377778°W / 40.448889; -84.377778 (Julius Boesel House)	German Township
5	Egypt Catholic Church and Rectory	More images	July 26, 1979 (#79003455)	Junction of Minster-Egypt Rd. and State Route 364 at Egypt 40°23′05″N 84°26′04″W / 40.384722°N 84.434444°W / 40.384722; -84.434444 (Egypt Catholic Church and Rectory)	Jackson Township
6	First Presbyterian Church of Wapakoneta		August 23, 1985 (#85001797)	106 W. Main St. 40°34′11″N 84°11′48″W / 40.569722°N 84.196667°W / 40.569722; -84.196667 (First Presbyterian Church of Wapakoneta)	Wapakoneta
7	H.E. Fledderjohann House, Doctor's Office and Summer Kitchen	More images	December 10, 1993 (#93001388)	107 E. German St. 40°29′36″N 84°18′56″W / 40.493333°N 84.315556°W / 40.493333; -84.315556 (H.E. Fledderjohann House, Doctor's Office and Summer Kitchen)	New Knoxville
8	Fort Amanda Site		November 10, 1970 (#70000484)	9 mi (14 km) northwest of Wapakoneta on State Route 198 40°40′53″N 84°16′06″W / 40.681389°N 84.268333°W / 40.681389; -84.268333 (Fort Amanda Site)	Logan Township
9	The Fountain Hotel		December 19, 1997 (#97001564)	100-110 W. Spring St. 40°32′34″N 84°23′20″W / 40.542778°N 84.388889°W / 40.542778; -84.388889 (The Fountain Hotel)	St. Marys
10	Glynnwood Catholic Church	More images	July 26, 1979 (#79003454)	6 mi (9.7 km) northeast of St. Marys on Glynnwood Rd. in Glynnwood 40°34′59″N 84°19′05″W / 40.583056°N 84.318056°W / 40.583056; -84.318056 (Glynnwood Catholic Church)	Moulton Township
11	Holy Rosary Catholic Church		July 26, 1979 (#79003456)	Junction of E. Spring and S. Pine Sts. 40°32′42″N 84°22′58″W / 40.545°N 84.382778°W / 40.545; -84.382778 (Holy Rosary Catholic Church)	St. Marys	Destroyed and replaced with a modern structure
12	William Luelleman House		May 21, 1975 (#75001322)	122 N. Main St. 40°26′20″N 84°22′56″W / 40.438889°N 84.382222°W / 40.438889; -84.382222 (William Luelleman House)	New Bremen
13	Miami and Erie Canal Deep Cut	More images	October 15, 1966 (#66000603)	2 mi (3.2 km) south of Spencerville on State Route 66 40°41′06″N 84°21′57″W / 40.68497°N 84.36575°W / 40.68497; -84.36575 (Miami and Erie Canal Deep Cut)	Salem Township	Extends into Spencer Township in Allen County
14	Minster Elementary School	More images	July 26, 1979 (#79002850)	Lincoln St. 40°23′42″N 84°22′44″W / 40.395°N 84.378889°W / 40.395; -84.378889 (Minster Elementary School)	Minster
15	John H. Nichols House	More images	July 14, 1988 (#88001064)	103 S. Blackhoof St. 40°34′10″N 84°11′47″W / 40.569444°N 84.196389°W / 40.569444; -84.196389 (John H. Nichols House)	Wapakoneta
16	Hugh T. Rinehart House	More images	November 27, 1978 (#78002009)	22011 State Route 67, east of Uniopolis[7] 40°36′02″N 84°01′57″W / 40.6006°N 84.0325°W / 40.6006; -84.0325 (Hugh T. Rinehart House)	Union Township
17	Round Barn	More images	April 17, 1980 (#80002942)	Along State Route 385, 3 mi (4.8 km) east of New Hampshire 40°33′24″N 83°53′35″W / 40.556667°N 83.893056°W / 40.556667; -83.893056 (Round Barn)	Goshen Township
18	St. Augustine Catholic Church	More images	July 26, 1979 (#79003457)	N. Hanover St. 40°23′40″N 84°22′47″W / 40.394444°N 84.379722°W / 40.394444; -84.379722 (St. Augustine Catholic Church)	Minster
19	St. John Catholic Church and Parish Hall		July 26, 1979 (#79003451)	Southwestern corner of Schlemel and Van Buren Sts. in Fryburg 40°30′58″N 84°08′54″W / 40.516°N 84.148333°W / 40.516; -84.148333 (St. John Catholic Church and Parish Hall)	Pusheta Township
20	St. Joseph Catholic Church and School	More images	July 26, 1979 (#79003453)	309 S. Perry St. 40°34′04″N 84°11′43″W / 40.567778°N 84.195278°W / 40.567778; -84.195278 (St. Joseph Catholic Church and School)	Wapakoneta
21	Uniopolis Town Hall	More images	July 22, 1994 (#94000773)	Ohio St. (State Route 67) east of its junction with Main St. 40°36′08″N 84°05′15″W / 40.602222°N 84.0875°W / 40.602222; -84.0875 (Uniopolis Town Hall)	Uniopolis
22	Wapakoneta Commercial Historic District		January 5, 1989 (#88003131)	Roughly bounded by Auglaize, Park, Main, and Blackhoof Sts. 40°34′12″N 84°11′39″W / 40.57°N 84.194167°W / 40.57; -84.194167 (Wapakoneta Commercial Historic District)	Wapakoneta
23	Dr. Issac Elmer Williams House and Office		May 8, 1979 (#79001785)	407-411 N. Main St. 40°32′44″N 84°23′34″W / 40.545556°N 84.392778°W / 40.545556; -84.392778 (Dr. Issac Elmer Williams House and Office)	St. Marys
24	Charles Wintzer Building	More images	July 8, 2010 (#10000455)	202 W. Auglaize St. 40°34′15″N 84°11′47″W / 40.570833°N 84.196389°W / 40.570833; -84.196389 (Charles Wintzer Building)	Wapakoneta