The 2011 Regional League Division 2 (also known as the AIS League for sponsorship reasons) was the 6th season of the Regional League Division 2, it had redirected from the division 2, since its establishment in 2006. The 77 clubs will be divided into 5 groups (regions).
Regional League Championships 2011 was contested by the five regional league winners and runners up of the 3rd level championships of Thailand. The two best 3rd placed teams from the regional leagues also take part
Twelve teams were split into two groups of A & B, with the top two teams from group A & B gaining promotion to the Thai 1st Division for the 2012 campaign, along with this, the two group winners would play off to determine the overall champions.
The qualification structure is as follows:
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<span style="color:red;">red Zone</span>:2011 Regional League Division 2 Bangkok Metropolitan Region<br /> <span style="color:#ffff00;">Yellow Zone</span>:2011 Regional League Division 2 Central & Eastern Region<br /> <span style="color:#008000;">Green Zone</span>: 2011 Regional League Division 2 Northern Region Region<br /> <span style="color:Orange;"> Orange Zone</span>:2011 Regional League Division 2 North Eastern Region<br /> <span style="color:blue;">Blue Zone</span>:2011 Regional League Division 2 Southern Region<br />
Last Update October 1, 2011
The 2011 Regional League Division 2 winners were Ratchaburi