Oklahoma - Significance region: Local
| Booker T. Washington School |
| Boston Store |
| Boulder Cabin |
| Boulder-on-the-Park |
| Bounds, James H., Barn |
| Bourne Dairy |
| Bowers School |
| Bradford, William L., Building |
| Brady Heights Historic District |
| Brady Historic District |
| Braniff Building |
| Branson Building |
| Bridge No. 18 at Rock Creek |
| Bridgeport Hill-Hydro OK 66 Segment |
| Bridgeport Hill Service Station |
| Briggs, Eugene S., Auditorium |
| Bristow Firestone Service Station |
| Bristow Motor Company Building |
| Bristow Presbyterian Church |
| Bristow Tire Shop |
| Brittain-Garvin House |
| Broadway Hotel |
| Broadway Tower |
| Brockway Community Center |
| Broken Arrow Elementary-Junior High School |
| Brown, Jackson, House |
| Brown, Silas L., House |
| Bryan County Courthouse |
| Buena Vista Park Historic District |
| Buffalo City Park Pavilion |
| Buffalo Lodge |
| Buffington Hotel |
| Building at 405-407 College Avenue |
| Building at 409 College Avenue |
| Building at 500 Flynn Street |
| Burrus Mills Elevator C |
| Busby Office Building |
| Busby Theatre |
| Bushyhead, Rev. Jesse, Grave |
| Buttram, Frank and Merle, House and Grounds |
| Caddo Community Building |
| Caddo County Medicine Creek Archeological District |
| Cain's Coffee Building |
| Calvary Baptist Church |
| Cambria School |
| Canadian County Jail |
| Canadian Jail and Livery Stable |
| Canute Service Station |
| Capitol Hill Commercial Historic District |
| Capitol Hill General Hospital |
| Capitol-Lincoln Terrace Historic District |
| Captain Creek Bridge |
| Carey Place Historic District |
| Carlton Place Historic District |
| Carmen IOOF Home |
| Carmen IOOF Lodge No. 84 |
| Carnegie Library |
| Carnegie Library |
| Carpenter, Joseph, House |
| Carr, George, Ranch House |
| Carrier Congregational Church |
| Carselowey House |
| Carter County Courthouse |
| Cartmill Farm House |
| Carverdale Historic District |
| Casa Blanca |
| Casa Grande Hotel |
| Casa Loma Hotel |
| Case, J. I., Plow Works Building |
| CCC Ranch Headquarters |
| Cemetery Patent 110 |
| Central Baptist Church |
| Central Fire Station |
| Central High School |
| Central National Bank |
| Central Park Bandstand |
| Champlin, H. H., House |
| Chandler Armory |
| Chandler Baseball Camp |
| Chandler Bookstore |
| Chandler High School |
| Chapman-Barnard Ranch Headquarters |
| Cheairs Furniture Company Building |
| Checotah Business District |
| Checotah City Hall |
| Checotah MKT Depot |
| Chelsea Motel |
| Cherokee Armory |
| Cherokee Friends Church |
| Cherokee IOOF Lodge No. 219 |
| Cherokee Terrace Apartments |
| Chickasha Downtown Historic District |
| Chief Ne-Kah-Wah-She-Tun-Kah Grave and Statue |
| Chisholm Springs Springhouse |
| Choctaw, Oklahoma and Gulf Railroad Viaduct |
| Chrislip, H. C., House |
| Church Studio, The |
| Cimarron County Courthouse |
| Circle Theater |
| Cities Service Station |
Data from United States Park Service and Wikidata
