The 2010 Hong Kong Legislative Council by-election was an election held on 16 May 2010 in Hong Kong for all five geographical constituencies of the Legislative Council (LegCo), triggered by the resignation of five pan-democrat Legislative Councillors in January of the same year. The vote count was finalised by 2 am on 17 May 2010. Following a boycott by the pro-government parties, the five who resigned were successfully returned to the Legislative Council by voters with only turnout rate of 17.1%. The by-election has been criticised as a waste of taxpayers' money.