Gösta Lars August Knutsson (original surname Johansson; 12 October 1908 – 4 April 1973) was a Swedish radio producer and writer of a popular series of children's books about the cat Pelle Svanslös.

During his time as student union chairman, he was also employed as head of the Uppsala office of the Swedish National Radio and remained there from 1936 until 1969.

Knutsson is most remembered for his series of children's books about Pelle Svanslös, 'Peter No-Tail', a good-hearted and often naïve cat whose tail had been bitten off by a rat when he was a kitten.

Pelle Svanslös made his public debut in a story told by Knutsson on radio in 1937, with the first book appearing in 1939.

The Pelle Svanslös books have been reprinted in Swedish many times and have also been translated to Finnish, Danish, Norwegian, German, Latvian, Ukrainian, Polish and English.