| State Senate: | Oklahoma |
| District: | 21st |
| Predecessor: | Tom Dugger |
| Term Start: | November 13, 2024 |
| Office2: | Member of the Cushing Public School Board |
| Term Start2: | 2013 |
| Term End2: | 2019 |
| Party: | Republican |
| Education: | Oklahoma State University |
Randy Grellner is an American physician and politician who has represented the 21st district of the Oklahoma Senate since 2024.
Randy Grellner is from Kingfisher, Oklahoma and works as a rural physician with a practice in Cushing, Oklahoma.[1] He graduated from Kingfisher High School, Oklahoma State University in 1988 and from Oklahoma State University Center for Health Sciences in 1998.[2] He practiced medicine for about 25 years before his election and served on the Cushing Public Schools Board from 2013 to 2019.[3] During the Covid-19 pandemic, he prescribed ivermectin to patients while opposing vaccine mandates and mask mandates.[4] He describes the Covid-19 vaccine as "gene therapy" and called it "not a vaccine."[5] In 2021, Governor Kevin Stitt appointed Grellner to the Oklahoma State Board of Health and his term expired in June 2024.[6]
In 2022, he ran in the 2022 United States Senate special election in Oklahoma and placed 6th.[7] He unsuccessfully sued Griffin Media after being excluded from a televised debate.[8]
In 2024, Grellner filed to run for the Oklahoma Senate's 21st district to succeed Tom Dugger. He faced James Winn in the Republican primary, with Kurt Murray filing before withdrawing to endorse Grellner. Grellner won the primary and defeated Democrat Robin Fuxa in the general election.[9] He was sworn in on November 13, 2024.[10]