|Richard Karl Eichler|
|Born||3 April 1903
|Died||31 January 1943
|Allegiance|| German Empire (to 1918)
Weimar Republic (to 1931)
|Years of service||1918–1931
|Commands held||Grenadier-Regiment 212|
|Awards||Knight's Cross of the Iron Cross|
|Other work||School teacher|
Richard Karl Eichler (3 April 1903 – 31 January 1943) was a highly decorated Oberst in the Wehrmacht during World War II. He was also a recipient of the Knight's Cross of the Iron Cross. The Knight's Cross of the Iron Cross was awarded to recognise extreme battlefield bravery or successful military leadership. Richard Eichler was killed on 31 January 1943 and was posthumously promoted to Oberst on 15 February 1943.
Awards and decorations
- Iron Cross (1939)
- 2nd Class
- 1st Class
- Eastern Front Medal
- German Cross in Gold (18 October 1942)
- Knight's Cross of the Iron Cross on 29 January 1943 as Oberstleutnant and commander of Grenadier-Regiment 212 
- Fellgiebel 2000, p. 144.
- Fellgiebel, Walther-Peer (2000). Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939–1945 – Die Inhaber der höchsten Auszeichnung des Zweiten Weltkrieges aller Wehrmachtsteile [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] (in German). Friedberg, Germany: Podzun-Pallas. ISBN 978-3-7909-0284-6.
- Scherzer, Veit (2007). Die Ritterkreuzträger 1939–1945 Die Inhaber des Ritterkreuzes des Eisernen Kreuzes 1939 von Heer, Luftwaffe, Kriegsmarine, Waffen-SS, Volkssturm sowie mit Deutschland verbündeter Streitkräfte nach den Unterlagen des Bundesarchives [The Knight's Cross Bearers 1939–1945 The Holders of the Knight's Cross of the Iron Cross 1939 by Army, Air Force, Navy, Waffen-SS, Volkssturm and Allied Forces with Germany According to the Documents of the Federal Archives] (in German). Jena, Germany: Scherzers Miltaer-Verlag. ISBN 978-3-938845-17-2.