Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Osgood Elementary School | School | 859 | Lincoln | 41 05 26 N | 100 46 09 W |
| Oshkosh | Locale | 1033 | Garden | 41 24 18 N | 102 20 40 W |
| Oshkosh | Populated Place | 1033 | Garden | 41 24 18 N | 102 20 40 W |
| Oshkosh Canal | Canal | 1036 | Garden | 41 24 12 N | 102 23 02 W |
| Oshkosh Canal | Canal | 1031 | Garden | 41 24 03 N | 102 21 60 W |
| Oshkosh Cemetery | Cemetery | 1056 | Garden | 41 25 25 N | 102 20 31 W |
| Oshkosh Country Club | Locale | 1031 | Garden | 41 22 37 N | 102 20 50 W |
| Oshkosh Elementary School | School | 1037 | Garden | 41 24 38 N | 102 20 55 W |
| Oshkosh Fire Department | Building | 1035 | Garden | 41 24 30 N | 102 20 38 W |
| Oshkosh Grain Incorporated Elevator | Locale | 1033 | Garden | 41 24 18 N | 102 20 40 W |
| Oshkosh Medical Clinic | Hospital | 1037 | Garden | 41 24 45 N | 102 20 54 W |
| Oshkosh Number 1 Election Precinct | Civil | 1197 | Garden | 41 18 43 N | 102 29 55 W |
| Oshkosh Police Department | Building | 1033 | Garden | 41 24 18 N | 102 20 40 W |
| Oshkosh Post Office | Post Office | 1033 | Garden | 41 24 18 N | 102 20 40 W |
| Oshkosh Public Library | Building | 1033 | Garden | 41 24 18 N | 102 20 40 W |
| Osmond | Locale | 504 | Pierce | 42 21 21 N | 097 35 47 W |
| Osmond | Populated Place | 506 | Pierce | 42 21 36 N | 097 35 48 W |
| Osmond Cemetery | Cemetery | 512 | Pierce | 42 20 45 N | 097 34 57 W |
| Osmond City Police Department | Building | 506 | Pierce | 42 21 36 N | 097 35 48 W |
| Osmond Fire Department | Building | 506 | Pierce | 42 21 36 N | 097 35 48 W |
| Osmond General Hospital | Hospital | 506 | Pierce | 42 21 36 N | 097 35 48 W |
| Osmond Post Office | Post Office | 505 | Pierce | 42 21 31 N | 097 35 49 W |
| Osmond Public Library | Building | 506 | Pierce | 42 21 36 N | 097 35 48 W |
| Osmond Public Schools | School | 512 | Pierce | 42 22 00 N | 097 35 56 W |
| Osmond United Methodist Church | Church | 509 | Pierce | 42 21 44 N | 097 35 48 W |
| Osteoporosis Center of Nebraska | Building | 379 | Lancaster | 40 47 28 N | 096 38 40 W |
| Ostgren Ranch | Locale | 1417 | Kimball | 41 23 11 N | 103 34 08 W |
| Oswego Park | Park | 588 | Adams | 40 35 20 N | 098 24 26 W |
| Otis Motel and Trailer Court | Populated Place | 1083 | Sheridan | 42 48 17 N | 102 12 12 W |
| Oto and Missouri Agency Historical Marker | Park | 363 | Gage | 40 02 45 N | 096 34 36 W |
| Oto Indians Historical Marker | Park | 339 | Douglas | 41 13 25 N | 096 21 11 W |
| Oto Mission Historical Marker | Park | 296 | Sarpy | 41 06 45 N | 095 55 39 W |
| Otoe | Populated Place | 339 | Otoe | 40 43 25 N | 096 07 01 W |
| Otoe (historical) | Locale | 341 | Otoe | 40 43 28 N | 096 07 11 W |
| Otoe City Post Office (historical) | Post Office | 284 | Otoe | 40 35 50 N | 095 47 21 W |
| Otoe County | Civil | 334 | Otoe | 40 38 00 N | 096 08 01 W |
| Otoe County Courthouse | Building | 324 | Otoe | 40 40 35 N | 095 51 30 W |
| Otoe County Museum of Memories | Building | 336 | Otoe | 40 39 21 N | 096 10 47 W |
| Otoe County Sheriffs Office | Building | 321 | Otoe | 40 40 34 N | 095 51 29 W |
| Otoe Creek | Stream | | Gage | 40 06 08 N | 096 41 59 W |
| Otoe Creek | Stream | | Saline | 40 34 16 N | 096 57 05 W |
| Otoe Creek | Stream | | Saunders | 41 19 15 N | 096 24 45 W |
| Otoe Creek | Stream | | Saunders | 41 14 06 N | 096 22 00 W |
| Otoe Fire Department | Building | 339 | Otoe | 40 43 25 N | 096 07 01 W |
| Otoe Post Office | Post Office | 339 | Otoe | 40 43 25 N | 096 07 01 W |
| Otoe Public School | School | 354 | Otoe | 40 43 25 N | 096 07 18 W |
| Ott Dam | Dam | 635 | Franklin | 40 11 00 N | 099 08 25 W |
| Ott Dam | Dam | 631 | Harlan | 40 08 12 N | 099 13 13 W |
| Ott Reservoir | Reservoir | 635 | Franklin | 40 11 00 N | 099 08 25 W |
| Ott Reservoir | Reservoir | 631 | Harlan | 40 08 12 N | 099 13 13 W |
| Otte Dam | Dam | 1172 | Sheridan | 42 54 54 N | 102 22 44 W |
| Otte Reservoir | Reservoir | 1170 | Sheridan | 42 54 54 N | 102 22 44 W |
| Otter Creek | Stream | | Dawson | 41 00 35 N | 099 24 15 W |
| Otter Creek | Stream | | Dixon | 42 26 08 N | 096 40 01 W |
| Otter Creek | Stream | | Keith | 41 17 52 N | 101 55 36 W |
| Otter Creek | Stream | | Rock | 42 48 36 N | 099 13 55 W |
| Otter Creek Campground | Locale | 1000 | Keith | 41 17 50 N | 101 55 29 W |
| Otter Lake | Lake | 708 | Rock | 42 25 00 N | 099 17 19 W |
| Otterbein Cemetery | Cemetery | 352 | Cass | 40 53 08 N | 095 59 48 W |
| Otto Dam | Dam | 564 | Hamilton | 40 49 42 N | 098 11 13 W |
| Otto Olsen Building | Building | 663 | Buffalo | 40 42 03 N | 099 05 55 W |
| Otto School (historical) | School | 439 | Gage | 40 24 45 N | 096 41 10 W |
| Ouderkirk Dam | Dam | 1322 | Scotts Bluff | 41 46 54 N | 103 48 26 W |
| Ouderkirk Reservoir | Reservoir | 1322 | Scotts Bluff | 41 46 54 N | 103 48 26 W |
| Ough | Populated Place | 1022 | Dundy | 40 19 20 N | 101 30 46 W |
| Ough Cemetery | Cemetery | 1021 | Dundy | 40 19 17 N | 101 31 19 W |
| Ough Election Precinct | Civil | 1012 | Dundy | 40 17 06 N | 101 26 47 W |
| Ough Post Office (historical) | Post Office | 1022 | Dundy | 40 19 20 N | 101 30 46 W |
| Our Lady of Fatima Catholic Church | Church | 340 | Thurston | 42 06 47 N | 096 21 23 W |
| Our Lady of Good Counsel Church | Church | 792 | Dawson | 40 56 16 N | 100 09 06 W |
| Our Lady of Guadalupe Church | Church | 884 | Lincoln | 41 09 31 N | 101 00 10 W |
| Our Lady of Guadalupe Church | Church | 1182 | Scotts Bluff | 41 51 28 N | 103 38 52 W |
| Our Lady of Guadalupe Over 60 Center | Church | 353 | Douglas | 41 12 29 N | 095 56 43 W |
| Our Lady of Lourdes Catholic Church | Church | 613 | Buffalo | 41 01 41 N | 098 54 34 W |
| Our Lady of Lourdes Cemetery | Cemetery | 622 | Buffalo | 41 02 02 N | 098 55 53 W |
| Our Lady of Lourdes Church | Church | 367 | Douglas | 41 14 23 N | 095 57 38 W |
| Our Lady of Lourdes School | School | 368 | Douglas | 41 14 20 N | 095 57 38 W |
| Our Lady of Mount Carmel Church | Church | 624 | Howard | 41 16 49 N | 098 44 13 W |
| Our Lady of Mount Carmel Church | Church | 511 | Madison | 42 02 50 N | 097 49 53 W |
| Our Lady of Perpetual Help Church | Church | 625 | Valley | 41 36 27 N | 098 56 01 W |
| Our Reddemer Lutheran Church | Church | 382 | Saunders | 41 13 05 N | 096 37 34 W |
| Our Redeemer Lutheran Church | Church | 816 | Gosper | 40 35 08 N | 099 51 42 W |
| Our Redeemer Lutheran Church | Church | 852 | Lincoln | 41 07 47 N | 100 44 52 W |
| Our Redeemer Lutheran Church | Church | 486 | Nuckolls | 40 01 16 N | 098 04 08 W |
| Our Redeemer Lutheran Church | Church | 340 | Sarpy | 41 05 02 N | 096 07 54 W |
| Our Redeemer Lutheran Church | Church | 452 | Seward | 40 58 30 N | 097 10 21 W |
| Our Redeemer Lutheran Church (historical) | Church | 449 | Seward | 40 58 00 N | 097 12 31 W |
| Our Redeemer Lutheran Elementary School | School | 452 | Seward | 40 58 30 N | 097 10 21 W |
| Our Redeemer School | School | 852 | Lincoln | 41 07 49 N | 100 44 50 W |
| Our Savior Lutheran Church | Church | 476 | Madison | 42 02 00 N | 097 26 49 W |
| Our Savior Lutheran Church | Church | 448 | Wayne | 42 14 00 N | 097 01 08 W |
| Our Savior Lutheran Church | Church | 662 | Wheeler | 41 53 07 N | 098 33 08 W |
| Our Savior Lutheran Church Missouri Synod | Church | 787 | Cherry | 42 52 29 N | 100 32 57 W |
| Our Saviors Lutheran Church | Church | 565 | Howard | 41 07 06 N | 098 32 45 W |
| Our Saviors Lutheran Church | Church | 375 | Lancaster | 40 48 06 N | 096 39 46 W |
| Our Saviors Lutheran Church | Church | 515 | Pierce | 42 21 07 N | 097 47 16 W |
| Our Saviors Lutheran Church | Church | 778 | Red Willow | 40 12 59 N | 100 37 10 W |
| Our Saviour Lutheran Church | Church | 758 | Custer | 41 24 08 N | 099 38 41 W |
| Our Saviours Baptist Church | Church | 358 | Douglas | 41 17 20 N | 096 13 26 W |
| Our Saviours Lutheran Church | Church | 514 | Boyd | 42 52 26 N | 098 42 05 W |
| Our Saviours Lutheran Church | Church | 1059 | Dawes | 42 49 18 N | 102 59 25 W |
| Our Saviours Lutheran Church | Church | 384 | Gage | 40 07 40 N | 096 40 01 W |
| Our Saviours Lutheran Church | Church | 398 | Gage | 40 03 00 N | 096 48 12 W |
| Ourada Chiropractic | Hospital | 503 | Fillmore | 40 31 33 N | 097 36 09 W |
| Ourada Chiropractic | Hospital | 445 | Thayer | 40 10 02 N | 097 35 30 W |
| Outlet Campground | Locale | 587 | Harlan | 40 04 27 N | 099 12 33 W |
| Outlet Canal | Canal | 923 | Lincoln | 41 05 11 N | 100 56 14 W |
| Overfelt Dam | Dam | 368 | Dakota | 42 16 60 N | 096 27 37 W |
| Overfelt Reservoir | Reservoir | 369 | Dakota | 42 16 60 N | 096 27 37 W |
| Overland | Locale | 518 | Hamilton | 41 04 39 N | 097 59 10 W |