The Mathematics Department hosts a number of special lectures each Fall and Spring semesters:
- Virginia L. Chatelain Memorial Lecture Series. Established by a gift from the family of Virginia L. Chatelain in January 2001 to the Kansas State University Foundation. The purpose of the gift is to honor Virginia L. Chatelain, to recognize her many contributions to the Department of Mathematics as a faculty member, and to provide financial assistance to the Department.
- Isidore & Hilda Dressler Lecture Series. Established by a gift from Robert and Leona Dressler on March 20, 1986, to the Kansas State University Foundation. The purpose of the gift is to honor the memories of Isidore and Hilda Dressler, and to provide funds from the interest on the endowment for annual lectures to be given by internationally prominent mathematicians.
- Friends of Mathematics Lecture Series. Friends of Mathematics was established as a scholarship fund with the KSU Foundation on November 1, 1968. In the Spring of 1982, Friends of Mathematics expanded in scope to include an alumni-faculty organization dedicated to excellence in Mathematics at KSU. The primary mission of Friends of Mathematics is to provide scholarships for outstanding mathematics majors and to fund lectureships from annual friends-alumni-faculty contributions.
- Brent P. Smith Lecture Series. Established in July 2007 by the Department of Mathematics to honor and recognize Brent P. Smith for his many contributions to mathematics. Interest from the endowment provides funds for lectures to be given by internationally prominent mathematicians, and to support the research activities of the Center for the Integration of Undergraduate, Graduate, and Postdoctoral Research, I-Center.
- William J. Spencer Lecture Series. Established on May 15, 1990 by the Department of Mathematics to honor and recognize William J. Spencer for his many contributions to mathematics and the College of Arts & Sciences.
- Karl Stromberg Lecture Series. Established by a gift from Salvacion de los Puyos Stromberg on May 1, 1996, to the Kansas State University Foundation. The lecture series emphasizes mathematics as a foundational discipline for science, commerce, and the arts.