Guinness World Records: Oldest mouse

The oldest mouse ever is Patrick Stewart (USA, b. 14 July 2013) who was verified as being 9 years 180 days old on 10 January 2023 at the San Diego Zoo Wildlife Alliance in San Diego, California, USA.

Pat’s age is unprecedented for a mouse. He’s almost two years older than the previous oldest mouse ever recorded, Fritzy (1977-1985), who was owned by Bridget Beard (UK) and lived to the age of 7 years 225 days.

Pat was born on 14 July 2013 in the Pacific Pocket Mouse Breeding Facility at San Diego Zoo Safari Park, where he has lived his entire life.

This week’s Guinness World Records:

Monday, 20 March – Click here

Tuesday, 21 March – Click here

Wednesday, 22 March – Click here

Thursday, 23 March – Click here

Friday 24 March

Last week’s records:

All records – 13 March – 16 March

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