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