Jón Sigurðsson may refer to:
- Jón Sigurðsson (1811–1879), the leader of the 19th century Icelandic independence movement.
- Jón Sigurðsson (politician, born 1941), an Icelandic politician and former minister.
- Jón Sigurðsson (politician, born 1946) (1946–2021), an Icelandic politician and minister.
- Jón Sigurðsson (basketball) (born 1951), an Icelandic former basketball player and coach.
- Jón Karl Sigurðsson (born 1932), Icelandic Olympic skier
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