| 2nd Infantry Division, Queen Sirikit's Guard | |
|---|---|
| กองพลทหารราบที่ 2 รักษาพระองค์ ในสมเด็จพระนางเจ้าสิริกิติ์ พระบรมราชินีนาถ พระบรมราชชนนีพันปีหลวง | |
&sq=Qlik&lang=&file=File:Emblem_of_the_2nd_Infantry_Division,_Queen%27s_Guard.svg) Emblem of the 2nd Infantry Division, Queen Sirikit's Guard | |
| Active | 1910-present |
| Country | Thailand |
| Branch |  Royal Thai Army |
| Type | Mechanized infantry |
| Size | Division |
| Part of | First Army Area |
| Garrison/HQ | Fort Promyothee, Prachinburi, Thailand |
| Nickname(s) | Nakrob Burapha (นักรบบูรพา, Eastern warriors) Burapha Payak (บูรพาพยัคฆ์, Eastern tigers) |
| Motto(s) | Ready for battle and Graceful |
| Engagements | |
| Website | 2id |
The 2nd Infantry Division, Queen Sirikit's Guard (Thai: กองพลทหารราบที่ 2 รักษาพระองค์ ในสมเด็จพระนางเจ้าสิริกิติ์ พระบรมราชินีนาถ พระบรมราชชนนีพันปีหลวง) (พล.๒ รอ.) also known as Mechanized Infantry Division (Thai: กองพลทหารราบยานเกราะ) is the only Queen's Guard Mechanized Infantry Division of the Royal Thai Army (RTA). It is currently part of the First Army Area. The division was founded by King Chulalongkorn (Rama V) in 1910. In 1988 the division was designated a King's Guard unit by cabinet order, however, as a mark of distinction the division and all its subsidiary units were put under the patronage of Queen Sirikit and has since been known as the Queen's Guard.
The division is composed of three infantry regiments and three attached units, the 2nd Infantry Regiment, Queen's Guard, the 12th Infantry Regiment, Queen's Guard, and the 21st Infantry Regiment, Queen's Guard. The division and its subsidiary units are all based east of Bangkok, headquartered in Prachinburi, with other units in Chonburi and Sa Kaeo.