Irwin G. Priest

{{Infobox scientist

| name = Irwin G. Priest

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| birth_name = Irwin Gillespie Priest

| birth_date = 27 January 1886

| birth_place = Washington Township, Ohio

| death_date = 19 July 1932 (aged 46){{cite news |title=Irvin Priest Rites in Loudonville Friday For Former Resident |url=https://www.newspapers.com/image/291678969/?article=7dc58a1c-9991-4b37-9dae-a7ef3df0c895&focus=0.14102525,0.7085484,0.26143298,0.81839013&xid=3355 |access-date=14 April 2024 |work=News-Journal |date=21 July 1932 |location=Mansfield, Ohio |page=7}}

| death_place = Washington, D.C.

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| fields = Physics

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Irwin Gillespie Priest (27 January 1886 – 19 July 1932) was an American physicist who specialized in optics. He was president of the Optical Society of America from 1928 to 1929.{{cite news|title=Past Presidents of the Optical Society of America |publisher=Optical Society of America |url=http://www.osa.org/aboutosa/leadership/pastpresidents/default.aspx |url-status=dead |archiveurl=https://web.archive.org/web/20090120044158/http://osa.org/aboutosa/leadership/pastpresidents/default.aspx |archivedate=2009-01-20 }}

He received his bachelor's degree in 1907 from Ohio University. He went to work for the Bureau of Standards straight from college and after just six years was promoted to Chief of Colorimetry Section of the Optics division. He was named the first honorary lifetime member of the American Oil Chemists' Society in 1913 for his work on oil color grading.http://www.aocs.org/100/content/1910article.pdf{{dead link|date=April 2017 |bot=InternetArchiveBot |fix-attempted=yes }} Beginnings of the AOCS