The following is a list of unnamed Barzans.
Attis' wife []

Attis' wife
This female was married to Doctor Attis, and together they had two daughters, Amma and Tolpra.
In 3189, the family was living on board the USS Tikhov, when the ship encountered an coronal mass ejection. She and her two daughters died; only Attis, whose body was thrown out of phase, survived the incident. (DIS: "Die Trying")
Nhan's family []
The family of Starfleet officer D. Nhan lived in the 23rd century.
In 3189, Doctor Hugh Culber thought Nhan's family would be so proud of her for joining Starfleet. Nhan replied, "They were devasted. I can only imagine when they heard about my death." (DIS: "Die Trying")
Scientists []
According to Bhavani, these scientists attributed the Barzan wormhole's regular visibility to radiation buildup in the wormhole's accretion disk. (TNG: "The Price")