Alexander Slafkovský (born 11 March 1983) is a Slovak slalom canoeist who has competed at the international level since 1998.
Slafkovský won twelve medals at the ICF Canoe Slalom World Championships with ten golds (C1 team: 2003, 2009, 2010, 2011, 2013, 2014, 2015, 2017, 2018, 2019) and two silvers (C1: 2013, 2017).
At the European Championships he won a total of 20 medals (11 golds, 6 silvers and 3 bronzes).
Slafkovský also won the overall World Cup title in the C1 class in 2012, 2016 and 2018.His father Alexander Slafkovský is a former mayor of Liptovský Mikuláš.