Alexander Igorevich Dyachenko (Russian: ????????? ???????? ????????; born 24 January 1990) is a Russian sprint canoeist.
He won the Men's K-2 200 metres gold medal at the 2012 Summer Olympics with Yury Postrigay.
At the ICF Canoe Sprint World Championships he has won one gold medal (K-2 200 m: 2013), three silver medals (K-1 x 200 m: 2011, 2013, K-2 200 m: 2015) and two bronze medals (K-1 4 × 200 m: 2010, K-4 200 m: 2009).
Dyachenko began canoeing at the age of 6.