Icilio Guareschi

{{short description|Italian chemist}}

{{Infobox scientist

|name = Icilio Guareschi

|image = Icilio Guareschi, dal 1885 al 1918 - Accademia delle Scienze di Torino 0038 B.jpg

|image_size =

|caption = Portrait of Icilio Guareschi, was an Italian chemist.

|birth_date = {{birth date|1847|12|24|df=y}}

|birth_place = San Secondo Parmense, Italy

|residence =

|nationality = Italian

|death_date = {{death date and age|1918|6|20|1847|12|24|df=y}}

|death_place = Turin, Italy

|field = organic chemistry

|work_institution = University of Siena,
University of Turin

|alma_mater = University of Bologna

|doctoral_advisor =

|doctoral_students =

|known_for = Guareschi-Thorpe condensation

|prizes =

|religion =

|footnotes =

}}

Icilio Guareschi (24 December 1847 – 20 June 1918) was an Italian chemist.

Icilio Guareschi studied at the University of Bologna and received his Ph.D there in 1871. He became professor at the University of Siena and in 1879 at the University of Turin, where he worked until his death in 1918.

Guareschi worked in the field of organic chemistry, pharmacy, toxicology and the history and chemistry. In 1894 he discovered a reaction to synthesise 2-Pyridones, today known as the Guareschi-Thorpe condensation.