| Country: | KOR |
| Type: | EX |
| Route: | 251 |
| Alternate Name: | Honam Expressway Branch Line 호남고속도로의지선 |
| Map Custom: | yes |
| Length Km: | 58.5 |
| Established: | 1970 |
| Direction A: | South |
| Terminus A: | Nonsan, Chungnam |
| Direction B: | North |
| Terminus B: | Daedeok, Daejeon |
| Hangul: | 호남고속도로의지선 |
| Hanja: | 湖南高速道路-支線 |
| Mr: | Honam Kosok Toroui Chisǒn |
| Rr: | Honam Gosok Doroui Jiseon |
Honam Expressway Branch (Honam Gosokdoroui Jiseon, 호남고속도로의지선) is an expressway in South Korea, connecting Nonsan to Daejeon. The expressway's route number is 251.
This route was origin way of Honam Expressway until August 2001.
| No. | Name | Korean Name | Hanja Name | Connections | Distance | Notes | Location | ||
|---|---|---|---|---|---|---|---|---|---|
| Connected directly with Honam Expressway, Nonsan–Cheonan Expressway | |||||||||
| 1 | 논산분기점 | 論山分岐點 | - | 0.00 | Chungnam | ||||
| 2 | 논산나들목 | 論山나들목 | 5.52 | 5.52 | |||||
| 2-1 | 양촌(하이패스)나들목 | 陽村나들목 | 9.85 | 15.37 | Hi-pass Only | ||||
| SA | Beolgok SA | 벌곡휴게소 | 筏谷休憩所 | ||||||
| 3 | 계룡나들목 | 鷄龍나들목 | National Route 1 National Route 4 Gyeryong-daero | 12.58 | 27.95 | Gyeryong | |||
| 4 | 서대전분기점 | 西大田岐點 | 6.43 | 34.38 | Yuseong | Daejeon | |||
| 5 | 유성나들목 | 儒城나들목 | National Route 32 World Cup-daero | 8.43 | 42.81 | ||||
| 6 | 유성분기점 | 儒城分岐點 | 2.89 | 45.70 | |||||
| 7 | N.Daejeon IC (Daedeok Valley) | 북대전나들목 | 北大田나들목 | 4.61 | 50.31 | near of Daedeok Valley | |||
| 8 | 회덕분기점 | 懷德分岐點 | Gyeongbu Expressway | 3.66 | 53.97 | ||||