Kseniya Aleksandrovna Aksyonova (née Ustalova) (Russian: Ксения Александровна Аксенова; born 14 January 1988 in Sverdlovsk) is a Russian track and field sprinter who specialises in the 400 metres.
She has won gold medals in the 4 × 400 metres relay with Russia in European competition in the junior (2007), under-23 (2009) and senior (2010) levels. She won the silver medal in the individual 400 m at the 2010 European Athletics Championships with a personal best run of 49.92 seconds. She won the relay gold at the 2011 Summer Universiade and won her first global level medal with a relay bronze at the 2012 IAAF World Indoor Championships.
Ustalova began 2013 with an indoor best 51.31 seconds to win the Russian indoor title.[1]
