Conservative Karol Nawrocki has won Poland’s weekend presidential runoff election, according to the final vote count.

Nationalist opposition candidate Karol Nawrocki narrowly won Poland's presidential election, results showed Monday, delivering a major blow to the centrist government's efforts to cement Warsaw's pro-European orientation.

In a victory for European conservatives inspired by President Donald Trump, Nawrocki secured 50.89% of the vote, election commission data showed.