Daniel Jammer (Hebrew: דניאל יאמר, August 11, 1966) is a German-Israeli businessman. Jammer is the owner and founder of , an international Israeli based ICT company specializing in developing energy solutions. He used to own Maccabi Netanya from 2006 to 2011 and also FC Senec from 2003 to 2007. In 2014, Jammer was dubbed one of the leading cyber security figures in Israel by Globes, Israel's leading business magazine.