Larry the cat marks 15 years as No 10’s chief mouser

Larry the cat is marking 15 years as No 10’s mouse catcher after serving six prime ministers in Downing Street.

During his tenure, the 19-year-old tabby, officially known as the chief mouser to the Cabinet Office, has captured the hearts of the British public because of his frequent appearances outside the Prime Minister’s front door in central London.

Larry was adopted from Battersea Dogs and Cats Home in February 2011, and was originally intended as a pet for the children of then-prime minister David Cameron and his wife, Samantha.

As chief mouser, he is tasked with controlling the rodent population of the building at the heart of the British Government, although his success has been disputed.

Now more than 90 in relative human years, Larry is believed to have made his first kill on the job at the age of four in April 2011.

A favourite among the bank of press cameras, he was witnessed pouncing on a pigeon while the media waited for an update on post-Brexit negotiations with the EU. There have been fractious relationships with other domesticated animals too.

Former chancellor George Osborne’s cat Freya also fought with Larry when she lived at Downing Street, although the two were also said to have largely coexisted peacefully.

Prime Minister Sir Keir Starmer said in February last year he was initially having to keep his family’s Siberian kitten Prince away from Larry, in case the Downing Street veteran “doesn’t like him”.

The Starmers had two cats when he took office in 2024, Prince and Jojo.

The chief mouser sometimes appears in official records of such visits, and can be seen lurking on a windowsill in a photograph of Baroness Theresa May with US President Donald Trump while she was prime minister.

Larry has often provided moments of light relief amid the stormy political news of the last 15 years, lying on the step of No 10, unaware of important announcements due to be made by the UK’s political leaders.