Ohio's 1st senatorial district

!Senator

!Party

!Term

!Notes

|{{Party shading/Republican}}|Republican

|January 3, 1967 – December 31, 1974

|Cook defeated in 1974 Republican Primary Election{{cite news|title=Gaeth Winner In Senate Race|url=https://news.google.com/newspapers?id=LZlPAAAAIBAJ&sjid=b1IDAAAAIBAJ&pg=4685%2C3003629|access-date=14 September 2014|work=The Bryan Times|date=May 8, 1974}}

|{{Party shading/Republican}}|Republican

|January 4, 1975 – December 31, 1998

|Gaeth was not a candidate for re-election in 1998{{cite journal|last=Gillmor|first=Paul E.|author-link=Paul Gillmor|title=Tribute To Hon. M. Ben Gaeth|journal=Congressional Record|date=November 12, 1998|volume=144|issue=152|pages=E2318-2319|url=http://www.gpo.gov/fdsys/pkg/CREC-1998-11-12/pdf/CREC-1998-11-12-pt1-PgE2318-4.pdf|access-date=14 September 2014|publisher=United States Government Printing Office}}

|{{Party shading/Republican}}|Republican

|January 5, 1999 – December 31, 2006

|Reached term limit after four terms{{cite web|title=Election and terms of legislators. The Ohio Constitution, article 2, § 2|url=https://www.legislature.ohio.gov/laws/ohio-constitution?Part=2&Section=02|website=State of Ohio, 130th General Assembly|publisher=Legislative Information Systems|access-date=14 September 2014}}

|{{Party shading/Republican}}|Republican

|January 2, 2007 – January 15, 2011

|Resigned to become administrator of Ohio Bureau of Workers' Compensation{{cite news|title=State Sen. Buehrer Named New BWC Chief|url=http://www.bizjournals.com/columbus/news/2010/11/23/state-sen-buehrer-named-new-bwc-chief.html|access-date=14 September 2014|work=Columbus Business First|publisher=American City Business Journals|date=November 23, 2010}}

|{{Party shading/Republican}}|Republican

|February 2, 2011 – October 17, 2017

|Resigned{{cite web|url=http://www.cleveland.com/politics/index.ssf/2017/10/ohio_sen_cliff_hite_resigns.html|title=Ohio Sen. Cliff Hite resigns}}{{cite web|url=http://thecourier.com/breaking-news/2017/10/17/reports-state-sen-cliff-hite-resigns/|title=UPDATED: State Sen. Cliff Hite resigns; successor search to start soon|access-date=2017-10-18|archive-url=https://web.archive.org/web/20171018071318/http://thecourier.com/breaking-news/2017/10/17/reports-state-sen-cliff-hite-resigns/|archive-date=2017-10-18|url-status=dead}}{{cite web|url=http://www.toledoblade.com/Politics/2017/10/17/Hite-abruptly-resigns-Ohio-Senate-seat.html|title=Findlay's Hite abruptly resigns Ohio Senate seat|date=17 October 2017}}

|{{Party shading/Republican}}|Republican

|December 5, 2017 – present

|Incumbent