Simon I
Simon I may refer to:
- Simon I
- Simon I de Montfort
- Simon I de Senlis, Earl of Huntingdon-Northampton
- Simon I, Duke of Lorraine
- Simon I, Count of Saarbrücken
- Simon I, Count of Tecklenburg
- Simon I, Count of Sponheim-Kreuznach
- Simon I of Isenburg-Kempenich, Lord of Isenburg-Kempenich from 1329 until 1341
- Simon I, Lord of Lippe
- Simon I of Kartli
- Simon I Gurieli