# 2023 K3 League

The 2023 K3 League was the third season of the K3 League as a semi-professional league. Its regular season was held from 11 March to 11 November 2023.
The 15 participating teams played each other twice. The 14th-placed team advanced to the relegation play-off and the bottom team was directly relegated to the K4 League.

## Teams
### Team changes

Promoted from K4 League
* Yangpyeong FC
* Chuncheon Citizen
Promoted to K League 2
* Cheonan City
* Cheongju FC (renamed Chungbuk Cheongju)
Relegated to K4 League
* Dangjin Citizen

### Locations

| Club | City |
| Busan Transportation Corporation | Busan |
| Changwon City | Changwon |
| Chuncheon Citizen | Chuncheon |
| Daejeon Korail | Daejeon |
| FC Mokpo | Mokpo |
| Gangneung Citizen | Gangneung |
| Gimhae FC | Gimhae |
| Gyeongju KHNP | Gyeongju |
| Hwaseong FC | Hwaseong |
| Paju Citizen | Paju |
| Pocheon Citizen | Pocheon |
| Siheung Citizen | Siheung |
| Ulsan Citizen | Ulsan |
| Yangju Citizen | Yangju |
| Yangpyeong FC | Yangpyeong |

### Stadiums

| Club | Stadium | Capacity |
| Busan Transportation Corporation | Busan Asiad Auxiliary Stadium | ? |
| Changwon City | Changwon Football Center | 15,116 |
| Chuncheon Citizen | Chuncheon Songam Sports Town-Auxiliary Stadium | 25,000 |
| Daejeon Korail | Daejeon World Cup Stadium Practice Pitch | 17,371 |
| FC Mokpo | Mokpo International Football Center | 5,952 |
| Gangneung Citizen | Gangneung Stadium | 33,000 |
| Gimhae FC | Gimhae Public Stadium | 25,000 |
| Gyeongju KHNP | Gyeongju Civic Stadium | 12,199 |
| Hwaseong FC | Hwaseong Stadium | 35,270 |
| Paju Citizen | Paju Public Stadium | 23,000 |
| Pocheon Citizen | Pocheon Stadium | 7,000 |
| Siheung Citizen | Jeongwang Sports Park | 1,500 |
| Ulsan Citizen | Ulsan Stadium | 19,471 |
| Yangju Citizen | Godeok Artificial Turf Ground | 5,000 |
| Yangpyeong FC | Yangpyeong Sports Complex | 3,000 |

### Personnel

| Club | Manager |
| Busan Transportation Corporation | Kim Gwi-hwa |
| Changwon City | Choi Kyeong-don |
| Chuncheon Citizen | Son Hyun-jun |
| Daejeon Korail | Kim Seung-hee |
| FC Mokpo | Jeong Hyun-ho |
| Gangneung Citizen | Kim Do-keun |
| Gimhae FC | Yoon Sung-hyo |
| Gyeongju KHNP | Seo Bo-won |
| Hwaseong FC | Kang Chul |
| Paju Citizen | Lee Eun-no |
| Pocheon Citizen | Cho Man-geun |
| Siheung Citizen | Park Seung-soo |
| Ulsan Citizen | Yoon Kyung-sang |
| Yangju Citizen | Park Sung-bae |
| Yangpyeong FC | Kim Chang-yoon |

### Foreign players

Restricting the number of foreign players strictly to four per team, including a slot for a player from the AFC countries. A team could use four foreign players on the field each game, including at least one player from the AFC.
The name in bold indicates that the player was registered during the mid-season transfer window.
| Club | Player 1 | Player 2 | Player 3 | AFC player | Former players |
| Changwon City | Victor Ribeiro | | | | |
| FC Mokpo | | | | | Tatsuro Nagamatsu |
| Gangneung Citizen | Jordan Rodrigues | Careca | | | Douglas Matheus |
| Gimhae FC | | | | | Matheus Matias |
| Gyeongju KHNP | Reo Nishiguchi | Leonardo Kalil | João Leonardo | Hayata Komatsu | |
| Hwaseong FC | Luan Costa | Sandy | Caio Marcelo | Yuki Aizu | |

## League table

| Pos | Teamvte | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Hwaseong FC (C) | 28 | 17 | 9 | 2 | 42 | 21 | +21 | 60 | |
| 2 | FC Mokpo | 28 | 15 | 8 | 5 | 48 | 26 | +22 | 53 | |
| 3 | Gimhae FC | 28 | 13 | 10 | 5 | 42 | 26 | +16 | 49 | |
| 4 | Ulsan Citizen | 28 | 13 | 8 | 7 | 36 | 29 | +7 | 47 | |
| 5 | Daejeon Korail | 28 | 11 | 6 | 11 | 34 | 32 | +2 | 39 | |
| 6 | Siheung Citizen | 28 | 10 | 9 | 9 | 37 | 36 | +1 | 39 | |
| 7 | Paju Citizen | 28 | 11 | 5 | 12 | 32 | 27 | +5 | 38 | |
| 8 | Chuncheon Citizen | 28 | 9 | 11 | 8 | 25 | 26 | −1 | 38 | |
| 9 | Busan Transportation Corporation | 28 | 9 | 7 | 12 | 34 | 36 | −2 | 34 | |
| 10 | Gyeongju KHNP | 28 | 8 | 10 | 10 | 28 | 32 | −4 | 34 | |
| 11 | Pocheon Citizen | 28 | 7 | 12 | 9 | 26 | 33 | −7 | 33 | |
| 12 | Gangneung Citizen | 28 | 8 | 8 | 12 | 27 | 35 | −8 | 32 | |
| 13 | Yangpyeong FC | 28 | 7 | 6 | 15 | 28 | 43 | −15 | 27 | |
| 14 | Changwon City (O) | 28 | 7 | 6 | 15 | 23 | 39 | −16 | 27 | Qualification for relegation play-off |
| 15 | Yangju Citizen (R) | 28 | 4 | 7 | 17 | 29 | 50 | −21 | 19 | Relegation to K4 League |

## Results

| Home \ Away | BTC | CHA | CHU | DKO | GNE | GIH | GYE | HWA | MOK | PJC | POC | SIH | ULS | YJU | YPY |
| Busan Transportation Corporation | — | 0–1 | 1–1 | 1–1 | 0–1 | 1–2 | 2–2 | 1–1 | 0–2 | 0–1 | 2–2 | 1–0 | 1–1 | 2–1 | 4–0 |
| Changwon City | 1–2 | — | 0–1 | 2–4 | 1–2 | 3–2 | 0–0 | 1–2 | 2–0 | 0–0 | 0–0 | 1–0 | 1–2 | 1–2 | 1–0 |
| Chuncheon Citizen | 1–0 | 2–1 | — | 1–0 | 0–2 | 1–3 | 0–0 | 1–1 | 0–1 | 1–0 | 1–1 | 1–1 | 0–0 | 2–1 | 2–1 |
| Daejeon Korail | 1–0 | 2–1 | 1–0 | — | 0–0 | 2–2 | 0–0 | 0–1 | 3–1 | 1–0 | 0–1 | 1–1 | 1–2 | 2–1 | 2–0 |
| Gangneung City | 2–3 | 0–1 | 1–2 | 2–2 | — | 0–5 | 1–1 | 0–0 | 1–0 | 0–1 | 3–3 | 0–0 | 1–2 | 1–0 | 1–1 |
| Gimhae FC | 2–1 | 2–2 | 0–0 | 2–0 | 3–2 | — | 0–1 | 2–2 | 1–0 | 0–1 | 2–0 | 0–0 | 2–2 | 0–0 | 1–0 |
| Gyeongju KHNP | 3–1 | 3–0 | 1–0 | 0–2 | 0–1 | 2–4 | — | 0–1 | 0–0 | 1–1 | 1–3 | 3–1 | 0–0 | 4–3 | 0–1 |
| Hwaseong FC | 2–1 | 1–0 | 2–1 | 2–1 | 3–0 | 0–0 | 1–1 | — | 0–4 | 0–0 | 0–0 | 2–0 | 1–1 | 3–0 | 3–1 |
| FC Mokpo | 2–0 | 4–0 | 3–3 | 2–1 | 2–2 | 1–1 | 1–1 | 1–2 | — | 0–0 | 2–1 | 4–3 | 3–0 | 1–0 | 2–0 |
| Paju Citizen | 0–1 | 1–2 | 0–1 | 1–0 | 1–0 | 1–2 | 4–0 | 2–1 | 0–1 | — | 3–1 | 0–1 | 2–0 | 4–0 | 4–2 |
| Pocheon Citizen | 2–1 | 0–0 | 0–0 | 0–2 | 0–2 | 0–0 | 1–0 | 1–3 | 2–2 | 1–0 | — | 0–0 | 2–3 | 1–0 | 1–2 |
| Siheung Citizen | 1–2 | 1–0 | 2–2 | 4–2 | 1–0 | 2–1 | 2–1 | 0–2 | 0–2 | 4–2 | 0–0 | — | 1–2 | 3–2 | 4–2 |
| Ulsan Citizen | 1–3 | 3–0 | 1–0 | 2–1 | 0–1 | 1–0 | 2–1 | 0–1 | 1–1 | 3–0 | 0–1 | 0–2 | — | 4–2 | 0–0 |
| Yangju Citizen | 1–1 | 1–1 | 1–1 | 1–2 | 2–1 | 0–0 | 0–1 | 1–2 | 2–4 | 3–2 | 1–1 | 1–1 | 0–2 | — | 2–2 |
| Yangpyeong FC | 1–2 | 2–0 | 1–0 | 2–0 | 1–0 | 1–2 | 0–1 | 1–3 | 0–2 | 1–1 | 3–1 | 2–2 | 1–1 | 0–1 | — |

## Relegation play-off

The relegation play-off (K4 League promotion play-offs final) was contested between the 14th-placed team of K3 League and the winners of K4 League play-off (semi-final).