| MRT 3 | |
| Launch Date: | 2020[1] |
| Picture Format: | (576i, SDTV) |
| Owner: | Macedonian Radio-Television |
| Country: | North Macedonia |
| Language: | Macedonian |
| Area: | North Macedonia |
| Headquarters: | Skopje, North Macedonia |
| Sister Channels: | MRT 1 MRT 2 MRT 4 MRT 5 MRT Sobraniski Kanal MRT Sat MRT 2 Sat[2] |
| Website: | www.mrt.com.mk |
| Terr Serv 1: | Digital |
| Terr Chan 1: | 3 |
| Online Serv 1: | MRT Play |
| Online Chan 1: | Watch Live (MKD) Only |
MRT 3 (mk|МРТ 3|translit=MRT tri) is a television channel in North Macedonia owned and operated by Macedonian Radio-Television. The channel primarily focuses on sports content and films.
In 2019, MRT3 was a test channel and broadcast with the Blizoo television service provider.
In May 2020, the Macedonian Radio Television launched 3 more channels, including MRT3 (sports channel), MRT4 (international channel) and MRT5 (kids channel). All TV service providers tuned to these new channels in late-May to mid-June.