The radio was patented by Guglielmo Marconi n 1896. But the "invention" of radio has its roots in the experiments of many, including Nikola Tesla, Thomas Edison and Michael Faraday, just to name a few.
Guglielmo Marconi, (sculpture)
Portrait of Guglielmo Marconi (1874-1937), Engineer and Physicist
To the Smithsonian or Bust – Nikola Tesla