Rudel is a surname. Notable people with the surname include:
Hans-Ulrich Rudel (1916–1982), Stuka pilot and the most decorated German serviceman of World War II
Jaufre Rudel (died in or after 1147), Prince of Blaye and a troubadour
Julius Rudel (1921–2014), Austrian-born American opera and orchestra conductor
Wulgrin II of Angoulême (c. 1089–1140), called Rudel, possibly the father or father-in-law of Jaufre Rudel
Fictional characters:
Hanna Rudel, a fictional character from the anime/manga series Strike Witches
Computing:
Rudel is a plugin for the GNU Emacs text editor allowing collaborative real-time editing using the Obby protocol.