Derrinallum is a town in Victoria, Australia, located on the Hamilton Highway, in the Corangamite Shire. The town is the centre for the surrounding farming community and lies at the foot of Mount Elephant.
The Post Office opened on 7 December 1868 but was named Tooliorook until 1873.
Derrinallum P12 College is a co-educational state school in the town. The school is constantly having new students arrive and settle into the community.
Derrinallum features a FoodWorks supermarket, hardware store and nursery, a post office, a newsagent, a fish and chip shop (Derri Takeaway), a pub, a motel, a Shell service station, two mechanics, a library, a Red Cross shop, a rural supplies business and a cafe. The town had an ANZ Bank until it closed in November 2014.
Over summer, running from October to March, the town hosts a country farmer's market on the third Sunday of the month.
The local Country Fire Authority (CFA) in Derrinallum has a variety of equipment, including two fire trucks. It is part of the CFA Lismore group and District 06.
On 12 April 2014, Derrinallum became the centre of Australia's biggest explosives clean up, after a local, Glenn Sanders, (also known as 'The Colonel'), an explosives expert and professional mechanic, detonated explosives in his house. The blast rocked the town and was heard over 15km away. The incident left Derrinallum isolated for a number of weeks, including the busy Easter and Anzac Day weekends.