Robert Otho Hanig (born 1963/1964) is an American politician who is a member of the North Carolina Senate, representing District 1. He was appointed by North Carolina Governor Roy Cooper to serve the remainder of Senator Bob Steinburg's term representing District 1 following Sen. Steinburg's resignation to seek the Republican nomination in Senate District 2. Hanig was first elected to the North Carolina House of Representatives after defeating incumbent Beverly Boswell in the primary election for House District 6. Hanig is an Army veteran and owns The Pool Guy Aquatic Services.

After serving in the U.S. Army, Hanig moved to North Carolina's Outer Banks, where he worked in the rental property sector. He later established a swimming pool service company and expanded into property management, operating businesses that were connected to the local tourism industry and homeowners in the area.

In 2016, Hanig was encouraged to run for Currituck County Commissioner, where he served the 2nd district from December 5, 2016, to December 3, 2018, succeeding David Griggs. He was succeeded by Selina Jarvis.

Hanig was elected to the Currituck Board of Commissioners after running unopposed in the Republican primary in March 2016. He was elected as chairman in December 2016. As commissioner, Hanig expressed his dislike for solar farms in Currituck County, by saying "[l]arge solar projects haven't been a good deal for Currituck County residents."

He voted in 2017 to ban all future solar facility development.

After moving to the North Carolina House of Representatives, the Currituck Republican Party selected educator Selina Jarvis as their nominee to replace Bobby Hanig on the county Board of Commissioners.

Hanig defeated Rep. Beverly Boswell in a Republican primary.

Hanig defeated Tess Judge by 55%–45% in the general election.