| Reth Lyheng | |
| Fullname: | Reth Lyheng |
| Birth Date: | 1 January 2004 |
| Birth Place: | Kampong Cham,[1] Cambodia |
| Height: | 1.75m |
| Currentclub: | Nagaworld |
| Clubnumber: | 1 |
| Position: | Goalkeeper |
| Youthyears1: | 2019–2023 |
| Youthclubs1: | Bati Youth Football Academy |
| Years1: | 2023– |
| Clubs1: | Nagaworld |
| Caps1: | 19 |
| Goals1: | 0 |
| Nationalyears1: | 2019 |
| Nationalteam1: | Cambodia U15 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
| Nationalyears2: | 2019 |
| Nationalteam2: | Cambodia U16 |
| Nationalcaps2: | 2 |
| Nationalgoals2: | 0 |
| Nationalyears3: | 2022 |
| Nationalteam3: | Cambodia U19 |
| Nationalcaps3: | 5 |
| Nationalgoals3: | 0 |
| Nationalyears4: | 2022– |
| Nationalteam4: | Cambodia U23 |
| Nationalcaps4: | 11 |
| Nationalgoals4: | 0 |
Reth Lyheng (born 1 January 2004) is a Cambodian professional footballer[2] who plays as a goalkeeper for Cambodian Premier League club Nagaworld.[3]
Lyheng signed his first professional contract with Nagaworld in 2023[4] after graduating from Bati Youth Football Academy. He made 17 appearances and 3 clean sheets[5] in his debut season for his local league and thus became first choice goalkeeper over Cambodian veteran, Sou Yaty.