# National Register of Historic Places listings in Defiance County, Ohio

This is a list of the National Register of Historic Places listings in Defiance County, Ohio.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Defiance 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 an online map.
There are 12 properties and districts listed on the National Register in the county. Another property was once listed but has been removed.
This National Park Service list is complete through NPS recent listings posted February 28, 2025.
Download coordinates as:
* KML
* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)

## Current listings

| | Name on the Register | Image | Date listed | Location | City or town | Description |
| 1 | Brooke Site | Brooke Site | January 1, 1976 (#76001412) | Between Watson Rd. and the Auglaize River, east of the Ohio Power Dam 41°14′18″N 84°23′43″W﻿ / ﻿41.238333°N 84.395278°W﻿ / 41.238333; -84.395278﻿ (Brooke Site) | Defiance Township | |
| 2 | Defiance High School | Upload image | September 9, 2019 (#100004356) | 629 Arabella St. 41°16′54″N 84°21′54″W﻿ / ﻿41.2817°N 84.3651°W﻿ / 41.2817; -84.3651﻿ (Defiance High School) | Defiance | Former school, now houses school administration. |
| 3 | Defiance Public Library | Defiance Public Library | October 31, 1985 (#85003446) | 320 Fort St. 41°17′16″N 84°21′31″W﻿ / ﻿41.287778°N 84.358611°W﻿ / 41.287778; -84.358611﻿ (Defiance Public Library) | Defiance | |
| 4 | Dey Road Bridge | Dey Road Bridge More images | February 5, 1999 (#99000095) | 0.35 miles east of U.S. Route 24, west of Defiance 41°17′25″N 84°23′08″W﻿ / ﻿41.290278°N 84.385556°W﻿ / 41.290278; -84.385556﻿ (Dey Road Bridge) | Noble Township | |
| 5 | East Side Fire Station | East Side Fire Station | December 12, 1976 (#76001413) | Douglas and Hopkins Sts. 41°16′51″N 84°21′05″W﻿ / ﻿41.280833°N 84.351389°W﻿ / 41.280833; -84.351389﻿ (East Side Fire Station) | Defiance | |
| 6 | Fort Defiance Park | Fort Defiance Park More images | June 23, 1980 (#80002989) | Fort St. 41°17′15″N 84°21′24″W﻿ / ﻿41.2875°N 84.356667°W﻿ / 41.2875; -84.356667﻿ (Fort Defiance Park) | Defiance | |
| 7 | Holgate Avenue Historic District | Holgate Avenue Historic District | October 11, 1990 (#90001497) | 328-716 Holgate Ave. 41°17′09″N 84°22′10″W﻿ / ﻿41.285842°N 84.369544°W﻿ / 41.285842; -84.369544﻿ (Holgate Avenue Historic District) | Defiance | |
| 8 | Judge Alexander Latty House | Judge Alexander Latty House | January 25, 1991 (#90002214) | 718 Perry St. 41°16′50″N 84°22′22″W﻿ / ﻿41.280556°N 84.372778°W﻿ / 41.280556; -84.372778﻿ (Judge Alexander Latty House) | Defiance | |
| 9 | Riverside Chapel | Riverside Chapel | April 11, 1977 (#77001058) | S. Clinton St. in Riverside Cemetery 41°16′24″N 84°22′42″W﻿ / ﻿41.273333°N 84.378333°W﻿ / 41.273333; -84.378333﻿ (Riverside Chapel) | Defiance | |
| 10 | Charles Speaker House | Charles Speaker House | April 25, 1997 (#97000374) | 912 Holgate Ave. 41°16′57″N 84°22′28″W﻿ / ﻿41.2825°N 84.374444°W﻿ / 41.2825; -84.374444﻿ (Charles Speaker House) | Defiance | |
| 11 | St. Paul's Episcopal Church | St. Paul's Episcopal Church More images | June 7, 1976 (#76001414) | High St. 41°17′31″N 84°45′49″W﻿ / ﻿41.291944°N 84.763611°W﻿ / 41.291944; -84.763611﻿ (St. Paul's Episcopal Church) | Hicksville | |

## Former listing

| | Name on the Register | Image | Date listed | Date removed | Location | City or town | Description |
| 1 | Sauer-Watson House | Sauer-Watson House | April 12, 1978 (#78002054) | July 6, 1981 | 530 Washington Street 41°16′58″N 84°21′37″W﻿ / ﻿41.2827°N 84.3604°W﻿ / 41.2827; -84.3604﻿ (Sauer-Watson House) | Defiance | |