Magnus Magnusson (born Magnús Sigursteinsson; 12 October 1929 – 7 January 2007) was an Icelandic-born British-based journalist, translator, writer and television presenter.

[1] Magnús Sigursteinsson was born in Reykjavík on 12 October 1929, but grew up in Edinburgh, where his father, Sigursteinn Magnússon, was the Icelandic consul.

Magnusson made cameo appearances as himself, hosting Mastermind in Morecambe and Wise as well as the children's series Dizzy Heights and as Magnus Magnesium in The Goodies episode "Frankenfido".

[6] Shortly before his death, Magnusson returned to the regular Mastermind series to present the trophy to the 2006 champion Geoff Thomas.

Sally Magnusson presented the trophy to the next series winner, David Clark, while also paying tribute to her father and his legacy to the show.

He was elected President of the Royal Society for the Protection of Birds at its 94th annual general meeting in October 1995, succeeding Max Nicholson, and held the office until 2000.

Their eldest son, Siggi, died in a traffic accident in 1973, when he was struck by a vehicle close to the Glasgow Academy playing fields at Anniesland in the city's West End.