Isabella I (disambiguation)

Isabella I (1451–1504; ) was Queen of Castile.

Isabella I may also refer to:

• Isabella I of Jerusalem ( – 1205; 1190/1192 – 1205), Queen of Jerusalem
• Isabella I of Majorca (1337–1406), Queen of Majorca in pretense

See also

• Elizabeth I (disambiguation)
• Isabella II (disambiguation)
• Isabella of Castile (disambiguation)
• Queen Isabella (disambiguation)