Johannes Scotus or Skotus, John Scotus, or John the Scot may refer to:
- Johannes Scotus Eriugena, Irish theologian, philosopher, and poet (c. 815–877)
- John Scotus (bishop of Mecklenburg) (c. 990 - 1066)
- John Scotus (bishop of Dunkeld), Bishop of St Andrews and Dunkeld (d. 1203)
- John of Scotland, Earl of Huntingdon (died 1237)
- Duns Scotus, philosopher and theologian (c. 1266 – 1308)