Allerton is a suburb of Liverpool, in the county of Merseyside, England. Historically in Lancashire, it is located 3 miles (4.8 km) southeast of the city centre and is bordered by the suburbs of Garston, Hunt's Cross, Mossley Hill, and Woolton. It has a number of large houses in the prestigious Calderstones Park area, with mainly 1930s semi-detached housing around the shopping area of Allerton Road. It is paired with Hunts Cross to form the Allerton and Hunts Cross city council ward, which had a population of 14,853 at the 2011 census.

In the Domesday Book, Allerton appears as Alretune, meaning "the alder enclosure". This was derived from the Old English alr, meaning "alder", and tún, meaning "enclosure or village". Allerton was formerly a township in the parish of Childwall, in 1866 Allerton became a separate civil parish, it was made an urban district by the Local Government Act 1894, and added to the county borough of Liverpool on 9 November 1913. On 1 April 1922 the parish was abolished and merged with Liverpool. In 1921 the parish had a population of 2070. Over the course of the 2010s, many new bars and restaurants opened on Allerton Road, increasing its popularity.

• New Heys
• Calderstones School

• Allerton Cemetery
• Allerton Hall
• Allerton Park Golf Club
• Allerton Tower Park
• Calderstones Park (formerly the grounds of Calderstones House)
• Clarke Gardens
• The Parish Church of All Hallows

Allerton is served by two railway stations: Liverpool South Parkway on the border of Allerton and Garston (with the railway track separating the two suburbs) and West Allerton. Both stations offer services to Liverpool city centre and Manchester, but Liverpool South Parkway also has services to Southport and Hunts Cross (on Merseyrail's Northern Line) and also the fast service to Birmingham. The former Allerton railway station has been replaced by Liverpool South Parkway, although the old platforms are in use at the new station.

The nearest major bus stop is at Liverpool South Parkway, with the 86 service to the city centre and bus shuttles to Liverpool John Lennon Airport. There are several bus stops around Aigburth with links to various districts throughout the city and also the city centre.

• Peter Adamson, actor
• Saint John Almond, priest
• Jimmy Case, footballer
• Hollie Cavanagh, singer
• Michael Ihiekwe, footballer
• Bill Kenwright, theatre producer
• Paul McCartney, musician and member of The Beatles
• Hugh O'Leary, accountant, husband of former UK Prime Minister Liz Truss
• John Power, musician
• William Roscoe, banker and lawyer

The Beatles' song "Penny Lane" is set mostly on Allerton Road; the shelter in the middle of the roundabout, the barber shop, and possibly the bank mentioned in the song are all located at the junction of Allerton Road, Penny Lane, and Smithdown Road.

Allerton is featured in the first episode of the BBC drama series Spooks, in which pro-life campaigners detonate a bomb outside the home of a family planning doctor.

• Liverpool District Placenames, Henry Harrison, 1898

• Liverpool Street Gallery - Liverpool 18
• Allerton in the Domesday Book