Among the five presidential candidates on the ballot, polls indicated three had a chance to win and were finishing in close competition.
They are Rixi Moncada, 60, who served as finance and later defence secretary in the current administration of President Xiomara Castro before leaving to run for president for the social democrat LIBRE or Liberty and Re-foundation party; Salvador Nasralla, who is making his fourth bid for the presidency, this time as the candidate for the conservative Liberal Party; and former Tegucigalpa Mayor Nasry "Tito" Asfura, who carries the mantle of the also conservative National Party.
Castro promises to "democratise" an economy still defined by extreme wealth and poverty.
Nasralla casts himself as the outsider who can clean up the country's endemic corruption, and Asfura is trying to restore the National Party as a pro-business force tarnished by previous bouts of presidential corruption.
Honduras' security situation has improved in recent years as homicides across the region continue to fall, but it still has Central America's highest homicide rate.
Hondurans say security and jobs remain their top priorities, despite an economy that has strengthened during Castro's administration.
The presidential contest had mostly focused on candidates trading accusations of plans to manipulate the vote until this past week, when Trump endorsed Asfura while attacking his opponents.
Then Trump shocked Hondurans by announcing on Friday that he would pardon ex-President Juan Orlando Hernandez, who was serving a 45-year sentence in a US prison for helping drug traffickers moving cocaine to the US.
It was unclear what impact Trump would have on the election, but it was the latest show of the US government's willingness to involve itself directly in the region.
It also comes amid already heightened tensions because of the US military build-up in the Caribbean and Trump's threats against Venezuelan President Nicolas Maduro.
Hondurans were left unnerved by the sudden US attention and were hoping for peaceful elections.
Voters will also elect a new Congress and hundreds of mayors and city council members.
