Danilo Medina Sánchez (Latin American Spanish pronunciation: [daˈnilo meˈðina ˈsantʃes]; born 10 November 1951) is a Dominican politician who was President of the Dominican Republic from 2012 to 2020.

Medina previously served as Chief of Staff to the President of the Dominican Republic from 1996 to 1999 and from 2004 to 2006, and is a member of the Dominican Liberation Party (PLD). He won the May 2012 Dominican presidential election, defeating Hipòlito Mejía with 51% of the votes. On 15 May 2016, Danilo Medina leading a coalition of parties won the 2016 Dominican presidential election, defeating the leader of the opposition and PRM candidate Luis Abinader with 61.8% of the votes, the highest percentage received by a president elected in free elections since 1924 when Horacio Vásquez won the presidency with 69.8% of the ballots—surpassing Juan Bosch's record of 59.5% obtained in 1962, and Leonel Fernández's 57.1% of the votes obtained in 2004.

Medina's second term has been characterized as humane, transparent and goal-driven by its supporters. With a penchant for performing weekly visits to impoverished rural sections of the country, President Medina finished his second term with a 65% approval rate. However, during his second term there were attempts to seek a third term which was frustrated after a call from the United States Secretary of State Mike Pompeo.

Medina's family, including two of his brothers, are currently being investigated under allegations of corruption, involving traffic of influence by which they benefited under Medina presidency, obtaining multiple contracts and business with the State. As of November 2020^[update], the investigation process had entered a new phase following the arrests of two of Medina's brothers.

Medina was born in Arroyo Cano, San Juan Province, in the southwest of the Dominican Republic. He is the oldest of eight brothers born to Juan Pablo Medina de los Santos (1918–2019) and Amelia Sánchez Abreu (1931–2004). Since he was 18 years old he was a student leader, founding the San Juan de la Maguana branch of the Frente Revolucionario Estudiantil Nacionalista at the UASD. When Professor Juan Bosch founded the Partido de la Liberación Dominicana in 1973. Medina joined him. He studied economics at Instituto Tecnológico Santo Domingo (INTEC), and graduated magna cum laude in 1984. He has been a member of the Central Committee of the PLD since 1983. In 1986 election he was elected a deputy in Congress. In 1987, he married psychologist Cándida Montilla and has three daughters, Sibeli, Vanessa and Ana Paula.

In 1990, Medina was elected member of the Political Committee of the Dominican Liberation Party (PLD) together with Leonel Fernández and Juan Temístocles Montás. He was selected by his political organization to be the President of the Chamber of Deputies in the Dominican Republic.

He was President of the Chamber of Deputies of the Dominican Republic from 1994 to 1995, and subsequently served as Secretary of State of the Presidency from 1996 to 1999 and again from 2004 to 2006.

As president of the Chamber of Deputies in the National Congress (1990–94), he was a key figure in congressional negotiations that led to the resolving of the 1994 political impasse. In that year, a close finish between Joaquín Balaguer and José Francisco Peña Gómez brought about a major conflict, as one side accused the other of fraud. The conflict was resolved with a pact that instituted separate presidential and congressional elections, the need for a candidate to receive 50%+1 of the vote to win in a first round, and prohibited presidential re-election. The agreement eventually worked in favor of the PLD, which won the presidential in the 1996 election, with Leonel Fernández defeating José Francisco Peña Gómez in a second round.