These recipients are listed in the 1986 edition of Walther-Peer Fellgiebel's book, — ''The Bearers of the Knight's Cross of the Iron Cross 1939–1945 — The Owners of the Highest Award of the Second World War of all Wehrmacht Branches''. Fellgiebel was the former chairman and head of the order commission of the AKCR. In 1996 a second edition of this book was published with an addendum delisting 11 of these original recipients. Author and historian Veit Scherzer has cast doubt on a further 193 of these listings. The majority of the disputed recipients had received the award in 1945, when the deteriorating situation of the Third Reich during the final days of World War II left a number of nominations incomplete and pending in various stages of the approval process.
Listed here are the 448 Knight's Cross recipients of the Wehrmacht and Waffen-SS whose last name starts with "R". The AKCR named 447 recipients. Scherzer has challenged the validity of 11 of these listings but also identified one additional legitimate recipient, Siegfried Rieger. The recipients are initially ordered alphabetically by last name. The rank listed is the recipient's rank at the time the Knight's Cross was awarded.