East Islip HS Alumni List 
Last names starting with "O"
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Registered Alumni
All Alumni
- Class of 1970 Doris O'Brien (now Foss)
- Class of 1973 Linda O'brien
- Class of 1974 Maura O'Brien
- Class of 1977 Timothy O'Brien
- Class of 1970 Linda O'Gara
- Class of 1973 Kathleen O'Neill (now Flood)
- Class of 1986 Michael O'neill
- Class of 1970 Eileen O'Reilly
- Class of 1972 Jack Obrian
- Class of 1972 John Obrian
- Class of 1975 Chris Obrien
- Class of 1986 Donovan Obrien
- Class of 1980 Joan Obrien
- Kenny Obrien
- Class of 1963 Millie Obst
- Class of 1965 Georgette Ocenasek
- Deb Ocon
- Class of 1972 Debbie Ocon
- Class of 2000 Jaymes Oconnor
- Class of 1998 Kristina Oddo
- Ariannem Oehler1976k
- Class of 2002 Thomas Oeshorn
- Class of 1990 Dawn Ohalloran
- Class of 1978 James Ohara
- Class of 1976 Pat Ohara
- Class of 1987 Darcy Okeef
- Class of 2002 Danielle Okeefe
- Class of 1986 Steven Olafson
- Class of 1979 Debra Oleksick
- Class of 1977 Norman Olgivie
- Class of 1977 Robin Oliver (now Giangarra)
- Class of 1975 Steve Oliver
- Class of 1987 Erik Olsen
- Lars Olsen
- Class of 1972 Russ Omalley
- Shana Omalley
- Class of 2003 Alicia Oms
- Class of 1968 Valerie Oneil
- Christine Oneill
- Class of 1975 Kevin Oneill
- Class of 1973 Muriel ONeill
- Class of 1992 Susan Oneill
- Class of 1968 Thomas ONeill
- Class of 1968 Valerie Oneill
- Class of 1978 Ooooo Oooo
- Class of 1973 Joan Ooper
- Class of 1984 Ma Orange
- Class of 1977 Terrece OReilly
- Class of 1977 Terrice OReilly
- Paul Orgera
- Class of 1963 Richard Orourke
- Class of 1989 Scott Orski
- Class of 1984 Robert Osborne
- Class of 1974 Theresa Oshea
- Class of 1986 Dottie Osio Vale (formerly Ammann)
- Class of 1979 John OSullivan
- Class of 2015 Jason Otten
- Ed Ottone
- Class of 1987 Edmund Ottone
- Class of 1967 Lynn Over Holt
- Steve Overbeck
- Class of 1970 Diane Overholt
- Class of 1971 Elizabeth Owen
- Class of 1977 Susan Owen
- Class of 1993 Samantha Ozarin
- Class of 1988 Lisa Ozvath
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About the East Islip High School Alumni Directory
If you attended East Islip High and want to be added to the alumni directory register now to add your name to the alumni list. You can share memories of those activities that you were involved with at East Islip HS and you can view other alumni and read what other former students have posted about the time they spent at East Islip.
School's Address:
1 Redmen St
Islip Terrace, New York 11752
1 Redmen St
Islip Terrace, New York 11752
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