The Allen family are a prominent family who primarily live in Central City.
Known family members
Earth One
- Barry Allen's great-grandfather (Barry's paternal or maternal great-grandfather; status unknown)
- Barry Allen's great-grandmother (Barry's paternal or maternal great-grandmother; status unknown)
- Henry Allen's mother (Henry's mother and Barry's paternal grandmother; status unknown)
- Henry Allen (Nora's husband and Barry's father; deceased)
- Nora Allen (Henry's wife and Barry's mother; deceased)
- Barry Allen (Henry and Nora's son and Iris' husband)
- Iris West-Allen (Barry's wife)
- Nora Allen II (Barry and Iris' future daughter)
Earth Two
- Barry Allen's father (Mrs. Allen's husband and Barry's father)
- Barry Allen's mother (Mrs. Allen's wife and Barry's mother)
- Barry Allen (Mr. and Mrs. Allen's son; Iris West-Allen's husband)
- Iris West-Allen (Barry's wife)
Earth Three
- Jay Garrick's mother (Henry's mother doppelgänger, Jay Garrick's mother; status unknown)
- Jay Garrick (Henry's doppelgänger)