| ITF W35大版 | 04/13 02:45 | 28 | [371] Sayaka Ishii v Mananchaya Sawangkaew [227] | 7-5,7-5 | |
| ITF W35大版 | 04/12 01:00 | 27 | [291] Aoi Ito v Mananchaya Sawangkaew [227] | 3-6,4-6 | |
| ITF W35大版 | 04/11 01:00 | 26 | [410] Miho Kuramochi v Mananchaya Sawangkaew [227] | 4-6,6-3,5-7 | |
| ITF W35大版 | 04/10 05:05 | 25 | Hikaru Sato v Mananchaya Sawangkaew | 6-7,4-6 | |
| ITF W50柏市 | 04/02 05:05 | 25 | Mananchaya Sawangkaew v Chihiro Muramatsu | 6-3,5-7,4-6 | |
| ITF W50甲府 | 03/30 01:00 | 28 | [247] Mananchaya Sawangkaew v 李亞 [413] | 4-6,4-6 | |
| ITF W50甲府 | 03/29 04:30 | 27 | 麥根•瑪納斯 v Mananchaya Sawangkaew | 6-3,4-6,4-6 | |
| ITF W50甲府 | 03/28 00:55 | 26 | [357] 佐藤南帆 v Mananchaya Sawangkaew [247] | 7-6,4-6,3-6 | |
| ITF W50甲府 | 03/27 01:55 | 25 | [247] Mananchaya Sawangkaew v Sujeong Jang [215] | 7-5,6-4 | |
| ITF W35印多爾 | 03/16 04:30 | 28 | [239] Mananchaya Sawangkaew v 達利拉•紮庫帕維奇 [213] | 6-7,3-6 | |
| ITF W35印多爾 | 03/15 04:30 | 27 | [457] 傑奎琳∙卡巴積∙阿瓦德 v Mananchaya Sawangkaew [239] | 2-6,1-6 | |
| ITF W35印多爾 | 03/14 04:00 | 26 | [326] 薩哈賈•亞瑪拉帕利 v Mananchaya Sawangkaew [239] | 1-6,4-6 |
Mananchaya Sawangkaew (Thai: มนัญชญา สว่างแก้ว; born 10 July 2002) is a tennis player from Thailand.
She has a career-high singles ranking of 247 by the Women's Tennis Association (WTA), achieved on 4 December 2023. Sawangkaew has won two singles titles and one doubles title on the ITF Women's Circuit.
On the ITF Junior Circuit, she achieved a career-high combined ranking of 14, on 28 January 2019. She reached the quarterfinals of the girls' singles draw at the 2019 Australian Open.
Sawangkaew made her debut for Thailand Fed Cup team in 2019.