Robert Mason Hogg (born January 24, 1967) is the Iowa State Senator from the 33rd District. A Democrat, he has served in the Iowa Senate since 2007 after having served in the Iowa House of Representatives from 2003 to 2007. He ran in the Democratic primary for the 2016 United States Senate election in Iowa, but he lost to former Iowa Lieutenant Governor Patty Judge. In June 2021, Hogg announced his intention to not seek re-election to his seat in 2022.