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Student in a lab picking up a test tube.

About the Department of Chemistry

For over 150 years, the Department of Chemistry has worked to build a legacy of chemical education, innovation, and discovery.

In the early days of the University's history, the topics of chemistry were widely taught with a focus on improving agricultural practices and improving life. Fast forward to today, research in chemistry at the University of Guelph continues to play a pivotal role with the same goal of improving life by utilizing our chemistry knowledge to solve an array of complex world problems. From developing a clearer understanding of our past by studying the origins of life, to looking to the future by synthesizing the building blocks for quantum-based computing, the Department of Chemistry is at the forefront of chemical research. 

Land Acknowledgement

We learn, teach, and work on the traditional lands of the Attawandaron, Anishinaabek, and Haudenosaunee peoples and on the treaty lands of the Mississaugas of the Credit. This place has been home to these nations for thousands of years, and continues to be home to many First Nations, Inuit and Métis people today. All who live and work here have a continuing responsibility for stewardship of this land for future generations.

As scientists and educators, we acknowledge the extensive impact of colonialism on the Indigenous peoples. We must endeavor to expand our understanding of Indigenous knowledge, culture and history. We must then use this understanding to move towards and engage in allyship with our Indigenous colleagues and neighbours and elevate the lived experience of all.

Students sitting in a lecture hall

Our Programs

Within the Department of Chemistry, we offer 3 undergraduate degree programs: Biological and Pharmaceutical Chemistry, Chemistry, and Biomedical Toxicology. Within each of these programs, you will gain hands on experience with in-person labs starting in your first year and a co-op option for each degree.

Thinking of gaining practical skills through grad work? Work closely with our top professors to gain a Masters or PhD in chemistry and/or with a collaborative specialization in toxicology.

Explore Chemistry

Chemistry student analyzing test tube in a lab.

Research Excellence

Our faculty are working to solve big world problems with chemistry.

Chemistry building in 1887.

Department History

For over 150 years, the Department of Chemistry has been at the forefront of chemical innovation.

Large group of high school students in purple shirts sitting on bleachers at the University of Guelph for a Battle STEM event.

Chemistry in the Community

The University offers science-based outreach programs.

Headshot of Dr. Kathryn Preuss.

Dr. Kathryn Preuss

Department of Chemistry Chair


Dr. Kathryn Preuss joined the University of Guelph in 2002 as an Assistant Professor, holding an NSERC University Faculty Award (2002-2007). She received tenure and promotion to Associate Professor in 2006, and promotion to Professor in 2015. Dr. Preuss held a Tier II Canada Research Chair (2009-2019) and a U of G Research Leadership Chair (2021-2024). She was assumed the role of Acting Chair of the Department in 2020 and was appointed Chair in 2021. 

Biography of Dr. Kathryn Preuss