Ollanta Moisés Humala Tasso is a Peruvian politician and former military officer who served as President of Peru from 2011 to 2016. Originally a socialist and left-wing nationalist, he is considered to have shifted towards neoliberalism and the political centre during his presidency.

The President of Peru, officially called the Constitutional President of the Republic of Peru, is the head of state and head of government of Peru. The president is the head of the executive branch and is the Supreme Head of the Armed Forces and National Police of Peru. The office of president corresponds to the highest magistracy in the country, making the president the highest-ranking public official in Peru.