People with the last name O'Callaghan in Oregon
- Andrew O'Callaghan
- April O'Callaghan
- Barbara O'Callaghan
- Bobby O'Callaghan
- Brendan O'Callaghan
- Brenden O'Callaghan
- Brigid O'Callaghan
- C O'Callaghan
- Carrie O'Callaghan
- Catherine O'Callaghan
- Cherie O'Callaghan
- Christianna O'Callaghan
- Claire O'Callaghan
- Colin Michael O'Callaghan
- Colleen O'Callaghan
- Dale O'Callaghan
- David O'Callaghan
- Declan O'Callaghan
- Deirdre O'Callaghan
- Dennis O'Callaghan
- Donough O'Callaghan
- Doris O'Callaghan
- Elizabeth O'Callaghan
- Ellen O'Callaghan
- Erika O'Callaghan
- Helen O'Callaghan
- Jeanne O'Callaghan
- Joan O'Callaghan
- Joan Frances O'Callaghan
- Joanne O'Callaghan
- John O'Callaghan
- Josh O'Callaghan
- Jr O'Callaghan
- Judith O'Callaghan
- Julia O'Callaghan
- Katherine O'Callaghan
- Katherine Anne O'Callaghan
- Kevin O'Callaghan
- Kit O'Callaghan
- Lani O'Callaghan
- Liam O'Callaghan
- Linda O'Callaghan
- Lisa O'Callaghan
- Lloyd O'Callaghan
- Lucy O'Callaghan
- Lynne O'Callaghan
- M O'Callaghan
- Maeve O'Callaghan
- Mary O'Callaghan
- Matthew O'Callaghan
- Maurice O'Callaghan
- Me O'Callaghan
- Michael O'Callaghan
- Nancy O'Callaghan
- Nancy Nash O'Callaghan
- Nellie O'Callaghan
- Noreen O'Callaghan
- Patrick O'Callaghan
- Peggy O'Callaghan
- Robert O'Callaghan
- Ron O'Callaghan
- Ronald O'Callaghan
- Ryan O'Callaghan
- Seamus O'Callaghan
- Sean O'Callaghan
- Sheila O'Callaghan
- Skylar O'Callaghan
- Steve O'Callaghan
- Steven O'Callaghan
- Steven Mark O'Callaghan
- Terence O'Callaghan
- Terrance O'Callaghan
- Thomas O'Callaghan
- Timothy O'Callaghan
- Tommy O'Callaghan
- Vickie O'Callaghan
- W O'Callaghan
- William O'Callaghan
- Winifred O'Callaghan
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