| Official Name: | Nam Kum |
| Native Name: | น้ำกุ่ม |
| Settlement Type: | Tambon |
| Subdivision Type3: | District |
| Subdivision Name3: | Nakhon Thai District |
| Subdivision Type2: | Province |
| Subdivision Name2: | Phitsanulok |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Population As Of: | 2005 |
| Population Total: | 2,626 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 17.2667°N 100.7833°W |
| Postal Code Type: | Postal code |
| Postal Code: | 65120 |
| Blank Name: | Geocode |
| Blank Info: | 650207 |
Nam Kum (Thai: น้ำกุ่ม) is a subdistrict in the Nakhon Thai District of Phitsanulok Province, Thailand.
Nam Kum is the northernmost subdistrict in Nakhon Thai. It is bordered to the northwest by Chat Trakan District, to the east by Loei Province, and to the south by Nakhon Chum. The subdistrict is primarily mountainous terrain, as it is in the Phetchabun Mountains.Nam Kum lies in the Nan Basin, which is part of the Chao Phraya Watershed.
The following is a list of the subdistrict's mubans (villages):[1]
| No. | English | Thai | |
| 1 | Ban Na Wong Khong | บ้านนาวงฆ้อง | |
| 2 | Ban Nam Kum | บ้านน้ำกุ่ม | |
| 3 | Ban Pong Pia | บ้านโป่งเปี้ย | |
| 4 | Ban Na Faek | บ้านนาแฝก | |
| 5 | Ban Na Hin | บ้านนาหิน | |
| 6 | Ban Pong So | บ้านโป่งสอ | |
| 7 | Ban Bung Pha | บ้านบุ่งผำ |
Nam Kum is home to the following two temples:[2]