Parkinson is planning a break to write his autobiography, but is considering other TV projects with ITV.
The latest series of 'Parkinson' concluded last Saturday night, and the series will return for a final 12-week run in the autumn.
Parkinson said: "I'm going to take next year off to write my autobiography and consider other television projects. My thanks go out to all those who have worked on the shows down the years and the viewers for their loyal support and occasional kind words."
Parkinson brought his eponymous talk show to ITV in 2004 after more than three decades at the BBC.
During his three-year stint at ITV, Parkinson has interviewed Tom Cruise, Madonna, Prime Minister Tony Blair, Sir Elton John, Lauren Bacall and Sir Paul McCartney.
Paul Jackson, director of entertainment and comedy at ITV, said: "He has defined the talk show in British television and no-one has come near to equalling his record.
"His name is synonymous throughout the English speaking world as a benchmark for integrity and quality in the talk show genre, and being invited to appear on his show is a recognised landmark in any star's career.
'Parkinson' first became established as a regular fixture on Saturday night television in the early 1970s.
Some of the interviews on the show have attained legendary status in TV history, including those with Muhammad Ali, Fred Astaire and Richard Burton.
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