Katie or Katy Sullivan may refer to:
- Katie Sullivan (politician), member of the Montana House of Representatives
- Katy Sullivan, track and field paralympian
- Katie Sullivan (curler) in 2012 United States Junior Curling Championships
- Katie Kim (Irish musician), Katie Sullivan, Irish musician
See also
- Kate Sullivan (disambiguation)
- Catherine Sullivan (disambiguation)
- Kathleen Sullivan (disambiguation)
- Kathy Sullivan (disambiguation)
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