Barbara Lisk (Republican) represented the 15th Legislative District which included the lower Yakima Valley, Klickitat County, and parts of Benton and Skamania counties. She served six terms in the House of Representatives from 1991-2003.

She was a native of the Yakima Valley and was graduated from Washington State University with a B.S. degree in biology.

She and her husband had a family farm north of Zillah.