Steven Charles Zimmerman (born 1957) is an American organic chemist who is a professor in the Department of Chemistry at the University of Illinois at Urbana-Champaign.

In 1983 he received a Ph.D. at Columbia University in New York City where he worked with Ronald Breslow on pyridoxamine enzyme analogs.

He was appointed the Roger Adams Professor of Chemistry at the University of Illinois at Urbana-Champaign in 2004, having previously held a William H. and Janet G. Lycan Professorship.

As Department Head he managed an academic staff of 115 full-time equivalents (FTE) with a State budget of $8.4 M and total expenditures of $26.7M, including federal research grants and contracts.

[2] He oversaw a $60M fundraising campaign and secured the three largest individual gifts (>$15M total) at the University of Illinois in academic year 2007.