Roman Kruglyakov (or Krougliakov) is a Russian sprint canoeist who competed from the late 1990s to the early 2000s. He won six medals at the ICF Canoe Sprint World Championships with four golds (C-4 200 m: 1999, 2002, 2005; C-4 500 m: 1999), one silver (C-4 500 m: 2002), and one bronze (C-4 500 m: 2001).

Kruglyakov was stripped of two medals (both gold) at the 2003 ICF Canoe Sprint World Championships when his teammate Sergey Ulegin tested positive for doping.

• ICF medalists for Olympic and World Championships – Part 1: flatwater (now sprint): 1936–2007 at the Wayback Machine (archived 2010-01-05)
• ICF medalists for Olympic and World Championships – Part 2: rest of flatwater (now sprint) and remaining canoeing disciplines: 1936–2007 at WebCite (archived 2009-11-09)