Motorola Mobility LLC is an American telecommunications equipment corporation owned by Google Inc. and headquartered in the Chicago suburb of Libertyville, Illinois.

It was formerly Motorola's cellular phone division, which was called the Personal Communication Sector (PCS) prior to 2004. It pioneered the flip phone with the StarTAC in the mid-1990s. Motorola had a commanding lead in the analog cellphone market, but it was slow to embrace digital technology. By the turn of the 21st century, it produced another successful product, the (original) Razr, a very thin flip phone. Most recently, it has produced smartphones and tablets using Google's Android operating system. On January 4, 2011, the cellular division was spun off into a separate company as Motorola Mobility, while the remainder of the company was renamed Motorola Solutions, Inc.

On August 15, 2011, Google Inc. announced that it had agreed to acquire the company for US$12.5 billion. The acquisition included a sizeable portfolio of patents owned by Motorola. On February 13, 2012 Google received final approval from the European Commissioner for Competition and the United States Department of Justice.On 19 May 2012, the People's Republic of China also approved the merger for $12.5 billion, making it the last major trading commission to approve the merger. The merger was completed on May 22, 2012. Google officially unveiled the new logo and new name for Motorola Mobility on 26 June, 2013. Motorola Mobility is now simply known as "Motorola - a Google Company".