Donna Barnett (born 1942 or 1943) is a Canadian politician, who was elected to the Legislative Assembly of British Columbia in the 2009 election. She was elected as a BC Liberal member, representing the newly created riding of Cariboo-Chilcotin. She was initially declared defeated on election night in 2009, but was subsequently declared elected over British Columbia New Democratic Party MLA Charlie Wyse after a recount. Prior to her election to the legislature, Barnett served for 16 years as mayor of 100 Mile House. In January 2020, Donna Barnett announced she would not run in the next provincial election. In October 2022, she was elected to the municipal council for 100 Mile House.

Electoral record

!align="right"| !align="right"| !align="right" colspan=3|Total Valid Votes !align="right"|13,080 !align="right"|100.00% !align="right" colspan=3|Total Rejected Ballots !align="right"|66 !align="right"| !align="right" colspan=3|Turnout !align="right"|13,146 !align="right"|62.93% !align="right" colspan=3|Total Valid Votes !align="right"|14,037 !align="right"|100.00% !align="right"| !align="right" colspan=3|Total Rejected Ballots !align="right"|316 !align="right"|2.20% !align="right"| !align="right" colspan=3|Turnout !align="right"|14,353 !align="right"|72.94%