Alexsandr Dyachenko is a Kazakh former professional road bicycle racer, who rode professionally from 2004 to 2006 and 2008 to 2015, for the Capec, Ulan and Astana teams.

Astana Qazaqstan Team is a professional road bicycle racing team sponsored by the Samruk-Kazyna, a coalition of state-owned companies from Kazakhstan and named after its capital city Astana. Astana attained UCI ProTeam status in its inaugural year, 2007. Following a major doping scandal involving Kazakh rider Alexander Vinokourov, team management was terminated and new management brought in for the 2008 season. The team was then managed by Johan Bruyneel, former team manager of U.S. Postal/Discovery Channel team. Under Bruyneel the ethical nature of the team did not improve, although Astana in this period was very successful.