| Rattanai Songsangchan | |
| Fullname: | Rattanai Songsangchan |
| Birth Date: | 10 June 1995 |
| Birth Place: | Bangkok, Thailand |
| Currentclub: | PT Prachuap |
| Clubnumber: | 1 |
| Position: | Goalkeeper |
| Youthyears1: | 2010–2013 |
| Youthclubs1: | Police United |
| Years1: | 2013–2015 |
| Caps1: | 15 |
| Goals1: | 0 |
| Years2: | 2013 |
| Clubs2: | → Look Esan (loan) |
| Caps2: | 26 |
| Goals2: | 0 |
| Years3: | 2016–2023 |
| Caps3: | 60 |
| Goals3: | 0 |
| Years4: | 2023– |
| Caps4: | 9 |
| Goals4: | 0 |
| Nationalyears1: | 2013–2014 |
| Nationalteam1: | Thailand U19 |
| Nationalcaps1: | 12 |
| Nationalgoals1: | 0 |
| Nationalyears2: | 2015–2018 |
| Nationalteam2: | Thailand U23 |
| Nationalcaps2: | 4 |
| Nationalgoals2: | 0 |
Rattanai Songsangchan (Thai: รัตนัย ส่องแสงจันทร์, born 10 June 1995) simply known as Pure (Thai: เพียว) is a Thai professional footballer who plays as a goalkeeper for Thai League 1 club PT Prachuap.
In 2016 Rattanai was selected in Thailand U23 squad for 2016 AFC U-23 Championship in Qatar.