|Population||2,911 (2011 census)|
|State electorate(s)||Rockhampton and Keppel|
Allenstown is a suburb of Rockhampton, Rockhampton Region, Queensland, Australia. It is situated about three kilometres south-west of the central business district of Rockhampton. In the 2011 census, Allenstown had a population of 2,911 people.
The main business precinct of Allenstown is anchored by local shopping centre Allenstown Square, which was previously known as Allenstown Plaza before undergoing a major refurbishment and extension which was completed in 2012. Just across the road, there's the Rockhampton's only 'Dan Murphy's store. The suburb is also serviced by two primary schools, Allenstown State School  and St Peter's School.
The suburb is named after William Allen, builder, around 1862.
Allenstown has a number of heritage-listed sites, including:
- 36 Larnach Street: St Marks Church
- Upper Dawson Road: South Rockhampton Cemetery
- 170 William Street: St Josephs Cathedral
- Australian Bureau of Statistics (31 October 2012). "Allenstown". 2011 Census QuickStats. Retrieved 4 November 2015.
- "Allenstown (entry 46415)". Queensland Place Names. Queensland Government. Retrieved 15 March 2014.
- "Allenstown State School". Retrieved 25 January 2017.
- "St Peter's Catholic Primary School". Retrieved 25 January 2017.
- Australian Bureau of Statistics (25 October 2007). "Allenstown (Rockhampton City) (State Suburb)". 2006 Census QuickStats. Retrieved 26 February 2008.
- "St Marks Church (entry 602031)". Queensland Heritage Register. Queensland Heritage Council. Retrieved 12 July 2013.
- "South Rockhampton Cemetery (entry 601131)". Queensland Heritage Register. Queensland Heritage Council. Retrieved 12 July 2013.
- "St Josephs Cathedral (entry 600822)". Queensland Heritage Register. Queensland Heritage Council. Retrieved 12 July 2013.
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