2024–25 Thai League 3

The 2024–25 Thai League 3 marks the eighth season of the Thai League 3, Thailand's third-tier professional football league. This season retains the structure of 69 clubs divided into six regional groups, with an adjusted regional distribution to better reflect geographical locations.

For the 2024–25 season, the regions are organized as follows: Northern (11 clubs), Central (11 clubs), Northeastern (11 clubs), Eastern (12 clubs), Western (12 clubs), and Southern (12 clubs). Notably, the Bangkok Metropolitan Region has been replaced by the Central Region. Clubs previously competing in the Bangkok Metropolitan, Eastern, and Western regions have been reallocated to the new regional groups based on their geographical positions.

The league maintains a two-stage format, beginning with the Regional Stage, where clubs compete within their respective regions. The 2024–25 season kicks off on 14 September 2024 with the first match of the Regional Stage, and the top two clubs from each region, the champions and runners-up, advance to the National Championship Stage. This final phase, featuring 12 clubs, culminates with the second leg of the national final on TBD, marking the official close of the season. In this phase, clubs compete for the national title and the opportunity for promotion to Thai League 2 for the next season. By reorganizing the regional groups, Thai League 3 continues to play a crucial role in the development of football nationwide, ensuring a fair and competitive environment for all participating clubs. This revised regional structure aims to promote competitive balance and foster the growth of football across all regions of Thailand.