Traistana was a female Vissian xenobiologist.

In 2153, she was a member of the Vissian delegation that visited Enterprise NX-01 in 2153 as part of a cultural exchange. Commander Tucker introduced her to different Earth foods, including an ice cream sundae in the mess hall. He taught her how to eat it, informing her to eat the cherry first. (ENT: "Cogenitor")

Traistana was played by Stacie Renna.
In the final draft script of "Cogenitor", Traistana was commonly referred to as "Vissian Woman #1" and was described as "attractive".
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