Jacqueline Ann Jensen-Vallin is an American mathematician. She is an associate professor of mathematics at Lamar University, the editor-in-chief of MAA FOCUS, the newsletter of the Mathematical Association of America (MAA), and the governor of the Texas Section of the MAA. Her research interests include combinatorial group theory, low-dimensional topology, and knot theory; she is also known for her work in mathematics education and the history of women in mathematics.