Feijóo's PP, with 47.6% and 41 seats, went on to secure a third consecutive absolute majority, the only one at the time in Spain after the 2015 electoral cycle.

Concurrently, the Galician Nationalist Bloc (BNG) saw a slight drop in support but was able to outperform opinion poll predictions of an electoral meltdown.

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

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

[13][15] The president had the prerogative to dissolve the Parliament of Galicia and call a snap election, provided that it did not occur before one year had elapsed since a previous dissolution under this procedure.

[28] On 12 March 2016, Besteiro was accused of six further crimes—new bribery, prevarication and influence peddling crimes, as well as abuse of public administrations, subsidy fraud and embezzlement of public funds[29]—which prompted him to announce the following day his declination to be the party's leading candidate to the Xunta de Galicia in the next regional election.

[33] The national PSOE was also beleaguered by an internal crisis over Pedro Sánchez's leadership as a result of the party having secured its worst electoral results since the Spanish transition to democracy in the 2015 and 2016 general elections,[34][35] with Sánchez himself having announced an early party congress, to be held at some point following the Basque and Galician elections, in which he would be running for re-election.

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

The table below lists opinion polling on the victory preferences for each party in the event of a regional election taking place.

The table below lists opinion polling on the perceived likelihood of victory for each party in the event of a regional election taking place.

Under Article 15 of the Statute, investiture processes to elect the president of the Regional Government of Galicia required of an absolute majority—more than half the votes cast—to be obtained in the first ballot.