Alphabetically Union List - N
- Nagatan Thai Workers Union
- Nagoya Workers Union
- Nakakawa Workers Union
- Nakashima Workers Union
- Nakhon Luang Textile Wokers Union
- Nakhon Phanom Seree Garment Workers Union
- Nakhonratchasima Garment Workers Union
- Namkok Workers Union
- Namthong Spinning and Weaving Workers Union
- Nantawan Hotel Workers Union
- Narai Hotel Workers Union
- Narong Thai Industrial Workers Union
- Nasto Workers Union
- National Housing Authority State Enterprise Employees
- National Thai Workers Union
- Navaaporn Thailand Workers Union
- Navarat Workers Union
- NBC Labour Union
- New Jo Ho Ku Workers Union
- New Kwang Soon Lee Labour Union
- News Time Workers Union
- Nidek Workers Union
- Nippo Mechatronics Parts (Thailand) Workers Union
- Nippon Paint Workers Union
- Nippon Super Workers Union
- Nissan Workers Union of Thailand
- Nissen Workers Union of Thailand
- Nitchin Workers Union
- Nitpaint Fashion Workers Union
- Nitsuko Thai Workers Union
- Nitto Chego Workers Union
- Nitto Kenko Workers Union
- NL Labour Union
- Noble Precision Thailand Workers Union
- Nong Sak Sugar Workers Union
- Nongkai Garment Workers Union
- Novotel Coravia Phuket Workers Union
- NT Management Labour Union
- NTN Thailand Labour Union
- NVC Technology Thailand Labour Union
- NYK Labour Union
