| Unit Name: | 9th Indian Infantry Division |
| Dates: | 15 September 1940–15 February 1942 (Surrendered) |
| Country: | British India |
| Branch: | British Indian Army |
| Type: | Infantry |
| Size: | Division |
| Battles: | Battle of Malaya Battle of Kota Bharu |
| Commander1: | Arthur Edward Barstow |
| Commander1 Label: | Notable Commander |
The 9th Indian Infantry Division was an infantry division of the Indian Army during World War II. The division formed part of Indian III Corps in the Malaya Command during the Battle of Malaya. It was commanded by Major-General Arthur Edward Barstow.
The 9th Indian Infantry Division was formed on 15 September 1940 at Quetta, India before being transferred to Malaya. On 15 September 1940 the three original brigades of the division were the 15th, 20th, and 21st Indian Infantry Brigades.[1] The 3/17th Dogra Regiment from the 9th Division was the first British Commonwealth Army unit to see action against the Japanese at the Battle of Kota Bharu on 8 December 1941.[2] The 9th Indian Division fought a relatively successful defensive retreat down Malaya's east coast until the 22nd Brigade was cut off from the rest of the division at a demolished railway bridge near the village of Layang Layang in the state of Johore. Major-General Barstow was killed crossing the bridge, while attempting to contact the brigade. The 22nd Brigade was destroyed whilst trying to find another way to Singapore.[2]
What was left of the division was amalgamated with the 11th Indian Division.
8th Indian Infantry Brigade – Brigadier Berthold Wells (Billy) Key
22nd Indian Infantry Brigade – Brigadier George Painter