Paulist presidential election, 2010 (Regnum Bueno)

The Paulist presidential election was held in 2010 with two rounds of balloting. The first round was held on November 5 along with other elections as part of the 2010 general election. As no presidential candidate polled 50 percent of the vote on November 5, a runoff was held on November 26 between Eduardo Suplicy and Geraldo Alckmin. Suplicy won with 56% of the second round vote.

The election determined the successor to President Plínio de Arruda Sampaio, of the Socialist Party. According to the Constitution, the president is elected directly for a four-year term, with a limit of two consecutive terms. Sampaio was thus not eligible to stand again as he has already served two terms after winning the elections in 2002 and being re-elected in 2006.