Willoch may refer to:
- Kåre Willoch, Norwegian politician
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- Kåre Willoch's first term as Prime Minister of Norway
- Kåre Willoch's second term as Prime Minister of Norway
- Odd Isaachsen Willoch, Norwegian naval officer
- Herman Willoch, Norwegian painter
- Erik Willoch, Norwegian jurist
- Sigurd Willoch, Norwegian art historian