What were the names of the two wives of Lamech, Cain's descendant?

Answer: Adah and Zillah

Lamech married two women, Adah and Zillah. Adah bore Jabal and Jubal; Zillah bore Tubal-cain and Naamah.

“And Lamech married two women, one named Adah and the other Zillah.”— Genesis 4:19 (BSB)