Hammersmith Apollo (styled HMV Hammersmith Apollo since 2009 in a name deal with the owners MAMA Group) is a major entertainment venue located in Hammersmith, London. Designed by Robert Cromie in Art Deco style, it opened in 1932 as the Gaumont Palace cinema, being re-named the Hammersmith Odeon in 1962. In 2007, the building was purchased by the MAMA Group, who were taken over by the HMV Group in 2010.

The venue was opened in 1932 as the Gaumont Palace cinema, Hammersmith and seated over 3,500 people. It was designed by Robert Cromie in the Art Deco style.

In 1962, the building was re-named the Hammersmith Odeon, a name many people still use for the venue along with the phonetic abbreviation "Hammy-O". The venue was later refurbished and re-named the Labatt's Apollo following a sponsorship deal. Musical Theatre Star Michael Ball was the last person to play Hammersmith when it was named 'Odeon' and the first person to play following its renaming as the 'Apollo', both during his 1993 sell out tour.

In the early 1990s, it was again re-named the Hammersmith Apollo. It became a Grade II listed building in 1990 and was upgraded to Grade II* status in 2005.

In 2002, the venue was again re-named, this time to the Carling Apollo after another brewery struck a deal with the owners, US-based Clear Channel Entertainment (spun off as Live Nation (Venues) UK Ltd in 2005).

In 2006, the venue reverted to its former name, the Hammersmith Apollo. Around this time the stalls seats were made removable and now some concerts have full seating whilst others have standing only in the stalls. In the latter format the Apollo can accommodate around 5,000 people.

In 2007, the original 1932 Compton pipe organ, still present from the building's days as a cinema, was restored. The building then changed hands and was bought by the MAMA Group.

On 14 January 2009, a placing announcement by HMV Group revealed that by selling additional shares, the company would raise money to fund a joint venture with the MAMA Group, to run eleven live music venues across the United Kingdom, including the Hammersmith Apollo. As a result, the venue is to be renamed the HMV Apollo. Other venues purchased include The Forum in London's Kentish Town, the Birmingham Institute and Aberdeen's Moshulu.

The original 1932 Compton pipe organ is still present at the Apollo and was fully restored to playing condition in 2007. It has a four-manual console which rises through the stage on a new lift and about 1,200 organ pipes housed in large chambers above the front stalls ceiling. Having fallen into disrepair, the organ was disconnected in the 1990s and the console removed from the building. However at English Heritage and the council's insistence it has been reinstated and the entire organ restored. A launch party was held on 25 July 2007, at which an invited audience and the media witnessed top organist Richard Hills play the instrument.

Pipe organs such as this were installed in most cinemas of the pre-war period to provide music for film shows, accompany silent movies and to feature in solo performances. Many were also broadcast on the radio and recorded on 78 rpm records. These organs were based on church-type instruments but had many other sounds including percussion instruments built in. A lot of the pipe sounds were designed to sound like instruments of the orchestra and indeed the organs were in effect one-man orchestras, offering a large variety of sounds and being capable of accommodating music styles from classical though to jazz. Although several such organs survive in the UK these days, there are very few left in their original buildings. The Apollo organ is one of these and its sounds now fill the huge Apollo auditorium again after about 25 years of silence