[1] Voting for the Parliament is on the basis of universal suffrage, which comprises all nationals over 18 years of age, registered in Galicia and in full enjoyment of their political rights.

The 75 members of the Parliament of Galicia are elected using the D'Hondt method and a closed list proportional representation, with an electoral threshold of five percent of valid votes—which includes blank ballots—being applied in each constituency.

[1][2] The president has the prerogative to dissolve the Parliament and call a snap election, provided that it does not occur before one year has elapsed since a previous dissolution under this procedure.

The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour.

The "Lead" column on the right shows the percentage-point difference between the parties with the highest percentages in a poll.