Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Yale Street Baptist Church | Church | 41 | Bolivar | 33 43 57 N | 090 44 03 W |
| Yalobusha (historical) | Locale | 40 | Leflore | 33 31 28 N | 090 10 25 W |
| Yalobusha Academy | School | 97 | Yalobusha | 34 01 33 N | 089 40 48 W |
| Yalobusha County | Civil | 120 | Yalobusha | 34 04 29 N | 089 41 30 W |
| Yalobusha County Courthouse | Building | 90 | Yalobusha | 34 09 01 N | 089 37 49 W |
| Yalobusha General Hospital | Hospital | 93 | Yalobusha | 34 07 57 N | 089 38 31 W |
| Yalobusha Lookout Tower | Tower | 112 | Yalobusha | 33 56 43 N | 089 38 54 W |
| Yalobusha River | Stream | | Leflore | 33 33 09 N | 090 10 51 W |
| Yalobusha River Canal | Canal | 77 | Calhoun | 33 50 46 N | 089 13 30 W |
| Yalobusha Work Center | Locale | 122 | Yalobusha | 33 59 09 N | 089 47 24 W |
| Yamacraw (historical) | Populated Place | 15 | Pearl River | 30 37 58 N | 089 48 00 W |
| Yamacrow Creek | Stream | | Wilkinson | 31 07 55 N | 091 27 31 W |
| Yanaby (historical) | Locale | 73 | Oktibbeha | 33 18 15 N | 088 48 05 W |
| Yanceys Ferry (historical) | Crossing | 58 | Kemper | 32 41 35 N | 088 28 21 W |
| Yanco (historical) | Locale | 226 | Tippah | 34 36 55 N | 088 43 35 W |
| Yankee Charlie Ridge | Ridge | 186 | Tishomingo | 34 55 22 N | 088 17 33 W |
| Yankum Lake | Swamp | 42 | Bolivar | 33 43 03 N | 091 02 10 W |
| Yantley Creek | Stream | | Lauderdale | 33 12 00 N | 088 08 03 W |
| Yarber Branch | Stream | | Prentiss | 34 41 49 N | 088 26 05 W |
| Yarborough Park | Park | 105 | Hinds | 32 18 43 N | 090 17 48 W |
| Yarbrough | Populated Place | 47 | Quitman | 34 11 15 N | 090 17 25 W |
| Yarbrough Cemetery | Cemetery | 155 | Marshall | 34 42 05 N | 089 32 47 W |
| Yarbrough Chapel Christian Methodist Episcopal Church | Church | 143 | Marshall | 34 41 11 N | 089 31 37 W |
| Yarbrough Church (historical) | Church | 155 | Marshall | 34 42 03 N | 089 32 45 W |
| Yarbrough Lake Dam | Dam | 140 | Prentiss | 34 43 36 N | 088 26 48 W |
| Yarbrough School (historical) | School | 154 | Marshall | 34 42 02 N | 089 32 44 W |
| Yates Creek | Stream | | Webster | 33 26 50 N | 089 24 55 W |
| Yates Lake Dam | Dam | 118 | Neshoba | 32 49 48 N | 089 06 24 W |
| Yates School (historical) | School | 55 | Hinds | 32 09 30 N | 090 37 47 W |
| Yatsey Chapel | Church | 75 | Clay | 33 39 00 N | 088 47 18 W |
| Yawn School (historical) | School | 101 | Lamar | 31 02 50 N | 089 24 08 W |
| Yazoo (historical) | Locale | 174 | Neshoba | 32 42 30 N | 088 55 30 W |
| Yazoo Backwater Levee | Levee | 29 | Sharkey | 32 39 58 N | 090 43 26 W |
| Yazoo Church | Church | 39 | Leflore | 33 29 35 N | 090 15 11 W |
| Yazoo City | Populated Place | 34 | Yazoo | 32 51 18 N | 090 24 20 W |
| Yazoo City Cut-Off 1940 | Gut | 32 | Yazoo | 32 51 26 N | 090 27 32 W |
| Yazoo City High School | School | 30 | Yazoo | 32 52 23 N | 090 24 48 W |
| Yazoo City Junior High School | School | 35 | Yazoo | 32 51 03 N | 090 24 25 W |
| Yazoo City Post Office | Post Office | 32 | Yazoo | 32 51 02 N | 090 24 44 W |
| Yazoo County | Civil | 79 | Yazoo | 32 49 31 N | 090 22 42 W |
| Yazoo Creek | Stream | | Kemper | 32 40 39 N | 088 37 42 W |
| Yazoo Junction | Populated Place | 31 | Yazoo | 32 53 17 N | 090 23 22 W |
| Yazoo Landing | Locale | 25 | Yazoo | 32 50 40 N | 090 25 10 W |
| Yazoo Lookout Tower | Tower | 113 | Yazoo | 32 44 54 N | 090 21 24 W |
| Yazoo National Wildlife Refuge | Park | 33 | Washington | 33 05 39 N | 090 59 08 W |
| Yazoo Pass | Stream | | Coahoma | 34 24 30 N | 090 23 18 W |
| Yazoo Plantation (historical) | Locale | 169 | Neshoba | 32 43 50 N | 088 55 25 W |
| Yazoo River | Stream | | Warren | 32 20 08 N | 090 53 50 W |
| Yazoo River Cutoff | Channel | 29 | Humphreys | 33 16 23 N | 090 22 02 W |
| Yazoo River Diversion Canal | Canal | 17 | Warren | 32 23 12 N | 090 54 49 W |
| Yazooville Shopping Center | Locale | 59 | Yazoo | 32 51 38 N | 090 23 35 W |
| Yeager Branch | Stream | | Itawamba | 34 24 29 N | 088 30 07 W |
| Yeager Creek | Stream | | Grenada | 33 49 42 N | 089 34 04 W |
| Yellow Bayou | Stream | | Bolivar | 34 05 24 N | 090 44 55 W |
| Yellow Bend | Bend | 42 | Bolivar | 33 33 33 N | 091 13 31 W |
| Yellow Bill Creek | Stream | | Smith | 32 06 58 N | 089 33 26 W |
| Yellow Bluff | Cliff | 27 | Jackson | 30 42 48 N | 088 27 49 W |
| Yellow Bluff | Cliff | 110 | Leake | 32 48 07 N | 089 19 34 W |
| Yellow Creek | Stream | | Leake | 32 41 44 N | 089 34 25 W |
| Yellow Creek | Stream | | Lowndes | 33 33 54 N | 088 19 34 W |
| Yellow Creek | Stream | | Noxubee | 33 10 08 N | 088 42 16 W |
| Yellow Creek | Stream | | Tishomingo | 34 59 48 N | 088 12 08 W |
| Yellow Creek | Stream | | Wayne | 31 41 48 N | 088 40 10 W |
| Yellow Creek Cabin Area | Locale | 139 | Tishomingo | 34 59 20 N | 088 14 54 W |
| Yellow Creek Cemetery | Cemetery | 90 | Wayne | 31 44 06 N | 088 42 49 W |
| Yellow Creek Cemetery | Cemetery | 90 | Wayne | 31 44 53 N | 088 47 06 W |
| Yellow Creek Cemetery | Cemetery | 104 | Winston | 33 08 14 N | 088 48 55 W |
| Yellow Creek Church | Church | 93 | Wayne | 31 44 06 N | 088 42 47 W |
| Yellow Creek Church | Church | 88 | Wayne | 31 44 51 N | 088 47 04 W |
| Yellow Creek Church | Church | 104 | Winston | 33 08 12 N | 088 48 51 W |
| Yellow Creek Drainage Ditch (historical) | Canal | 136 | Tishomingo | 34 49 11 N | 088 18 55 W |
| Yellow Creek Nuclear Power Plant | Locale | 35 | Tishomingo | 34 57 00 N | 088 13 00 W |
| Yellow Creek Oil Field | Oilfield | 88 | Wayne | 31 44 55 N | 088 44 43 W |
| Yellow Creek State Inland Port | Locale | 137 | Tishomingo | 34 58 40 N | 088 14 15 W |
| Yellow Fever Cemetery | Cemetery | 70 | Stone | 30 43 15 N | 089 09 11 W |
| Yellow Hill Church (historical) | Church | 103 | Hinds | 32 08 14 N | 090 26 15 W |
| Yellow Jacket Branch | Stream | | Perry | 31 16 22 N | 088 51 45 W |
| Yellow Jacket Creek | Stream | | Alcorn | 34 49 10 N | 088 27 00 W |
| Yellow Lake | Lake | 31 | Marion | 31 01 33 N | 089 45 35 W |
| Yellow Lake | Populated Place | 52 | Panola | 34 28 05 N | 090 11 33 W |
| Yellow Lake Bayou | Lake | 54 | Tunica | 34 31 27 N | 090 12 37 W |
| Yellow Lake Bayou | Stream | | Quitman | 34 26 22 N | 090 14 24 W |
| Yellow Leaf Cemetery | Cemetery | 142 | Lafayette | 34 18 20 N | 089 28 14 W |
| Yellow Leaf Church | Church | 140 | Lafayette | 34 18 25 N | 089 28 17 W |
| Yellow Leaf Creek | Stream | | Lafayette | 34 17 01 N | 089 29 30 W |
| Yellow Rabbit (historical) | Locale | 170 | Benton | 34 49 33 N | 089 06 37 W |
| Yellow Rabbit Creek | Stream | | Benton | 34 44 54 N | 089 08 59 W |
| Yellow Rabbit Lake | Reservoir | 140 | Benton | 34 49 23 N | 089 06 09 W |
| Yellow Sand Creek | Stream | | Copiah | 31 56 56 N | 090 35 07 W |
| Yellowleaf School (historical) | School | 151 | Jefferson Davis | 31 41 21 N | 089 56 48 W |
| Yelverton Pond Dam | Dam | 110 | Hinds | 32 11 25 N | 090 21 48 W |
| Yelvertons Lake Dam | Dam | 102 | Hinds | 32 15 19 N | 090 20 30 W |
| Yerger Lake Dam | Dam | 93 | Madison | 32 29 31 N | 090 05 18 W |
| Yo-26-11 Dam | Dam | 102 | Yalobusha | 34 01 18 N | 089 49 00 W |
| Yo-26-8 Dam | Dam | 110 | Yalobusha | 34 01 42 N | 089 48 12 W |
| YO-29-10 Dam | Dam | 101 | Yalobusha | 33 58 42 N | 089 49 24 W |
| Yocana Lake Dam | Dam | 131 | Pontotoc | 34 14 18 N | 089 11 36 W |
| Yocanoocana (historical) | Locale | 100 | Leake | 32 41 30 N | 089 39 18 W |
| Yockanookany Baptist Church | Church | 122 | Attala | 32 55 52 N | 089 37 20 W |
| Yockanookany River | Stream | | Leake | 32 40 09 N | 089 40 46 W |
| Yockanookany Roadside Park | Park | 97 | Madison | 32 39 42 N | 089 45 50 W |
| Yocona | Populated Place | 97 | Lafayette | 34 16 41 N | 089 24 53 W |
| Yocona High School (historical) | School | 101 | Lafayette | 34 16 43 N | 089 25 00 W |
| Yocona Lake | Reservoir | 126 | Pontotoc | 34 12 16 N | 089 09 51 W |
| Yocona Ridge | Ridge | 87 | Yalobusha | 34 08 01 N | 089 53 09 W |
| Yocona River | Stream | | Tallahatchie | 34 09 27 N | 090 07 26 W |
| Yocona River Canal | Canal | 76 | Yalobusha | 34 10 52 N | 089 42 15 W |
| Yocona River Structure Y-14-2 Dam | Dam | 128 | Lafayette | 34 19 42 N | 089 18 24 W |
| Yocona River Watershed Y-14-11 Dam | Dam | 127 | Pontotoc | 34 13 06 N | 089 10 48 W |
| Yocona River Watershed Y-14-12 Dam | Dam | 126 | Pontotoc | 34 12 30 N | 089 09 42 W |