The Croatian Parliament electoral districts (Croatian: izborne jedinice) are the special territorial subdivision of Croatia used for the country's parliamentary elections.
Croatia has 12 electoral districts. Ten of these are geographical districts within Croatia, each providing 14 members of Croatian Parliament. District XI is for Croatian citizens living abroad, with 3 members of parliament (until 2011, it elected a maximum 12 members of parliament, depending on turnout). District XII is for national minorities, providing 8 members of parliament.
The first ten districts are roughly based on geography, but shaped according to the number of voters so that each district holds roughly the same amount of registered voters, around 400,000. These districts therefore do not correspond to the borders of top administrative divisions within Croatia and each district contains one or more or parts of several Croatian counties.
These districts have been in place since the Law on Electoral Districts of 1999.
They have been used in the following elections as of 2016[update]: 2000, 2003, 2007, 2011, 2015, 2016.
In December 2010, the Constitutional Court of Croatia ruled that an update to the layout of electoral districts was necessary, as the differences in the number of voters among the districts, limited by law to 5%, had grown to 25%. In April 2011 the parliament discussed a proposal to the effect, but no change was made in time for the 2011 elections.