Emil John Raddatz (October 5, 1857 in Stettin, Pomerania, Prussia – November 1, 1933 in Salt Lake City, Utah, United States) was a miner, politician, and businessman who shaped Utah's history and its economy.
He served as Mayor of Stockton before representing Utah's seventh district in the 1st State Legislature.
Raddatz was president, Treasurer and General Manager of the Tintic Standard Mining Company and President and Treasurer of Duluth & Utah Development Company.
He worked as a grocery bagger until 1879, when he moved to Silver Cliff, Colorado and then San Juan.
They had five children: Pearl, Flora, Eunice, Harold, and Lucille.