All Creatures Great and Small is a television series, set in Northern England starting in 1937, based upon a series of books about a Yorkshire veterinary surgeon written by Alf Wight under the pen name of James Herriot. The series was produced by Playground Entertainment for Channel 5 in the United Kingdom and PBS in the United States.The series is a new adaptation of Wight's books, following the previous BBC series of 90 episodes that ran from 1978 to 1990 and a number of other films and television series based on Herriot's novels. It is filmed in the Yorkshire Dales, and received some funding from Screen Yorkshire.

The first series, which consists of six episodes and a special Christmas episode, was filmed to coincide with the 50th anniversary of the publication of the first book in the James Herriot series. The series premiered in the UK on Channel 5 on 1 September 2020 and in the US on PBS as part of Masterpiece on 10 January 2021.

Following a second series in late 2021, the show was renewed for two further series, each composed of six episodes and a Christmas special, in January 2022. Filming on the third series began in March 2022. The first episode aired in the UK on 15 September 2022 and in the US on 8 January 2023. The fourth series began airing on 5 October 2023 in the UK and is scheduled for 7 January 2024 in the US.