People with the last name Seffernick in Washington
- Andrew Seffernick
- Ashley Seffernick
- Aubrey Seffernick
- Bob Seffernick
- Carol Seffernick
- Carson Seffernick
- Charles Seffernick
- Chason Seffernick
- Colleen Seffernick
- Elizabeth Seffernick
- Jennifer Seffernick
- Joan Seffernick
- John Seffernick
- Lisa Seffernick
- Marjorie Seffernick
- Nancy Seffernick
- Robert Seffernick
- Sharon Seffernick
- William Seffernick
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