Jacquelyn J. Lahn (born August 3, 1952) is a retired American real estate appraiser and Republican politician. She served one term in the Wisconsin State Assembly (1989–1991), representing Eau Claire County.
Lahn was born on August 3, 1952, in Eau Claire, Wisconsin, and attended Osseo-Fairchild High School.[1] She attended the University of Wisconsin–Eau Claire and served in the United States Army from 1972 to 1977.
Lahn was elected to the Assembly in 1988. She is a Republican.