Emilio Botín-Sanz de Sautuola y García de los Ríos, Marquis Consort of O'Shea, (1 October 1934 – 10 September 2014) was a Spanish banker. He was the Executive Chairman of Spain's Grupo Santander. In 1993 his bank absorbed Banco Español de Crédito (Banesto), and in 1999 it merged with Banco Central Hispano creating Banco Santander Central Hispano (BSCH), which became Spain's largest bank, of which he was co-president with Central Hispano's José María Amusategui, until Amusategui retired in 2002. In 2004, BSCH acquired the British bank Abbey National, making BSCH the second largest bank in Europe by market capitalisation. In July 2008 Santander was named the Best Bank in the World by Euromoney magazine. He was known for his obsession with growth and performance as well as regularly visiting branches.

Botín was born in Santander, Cantabria, on the northern coast of Spain, the eldest of two sons of Emilio Botín y Sanz de Sautuola, born in 18 January 1903, and Ana María García de los Ríos y Caller. After attending as a boarding student the Jesuit school of Colegio de la Inmaculada, in Gijón, he studied Law at the University of Valladolid in Valladolid and Economics at the University of Deusto in Bilbao. In 1986 Emilio Botín, then aged 52, took over from his father as president of the Banco de Santander, one of many banks that existed in Spain at the time. Botín was no newcomer to the banking world. His father, grandfather and great-grandfather were all bankers.[citation needed]

Botín was married to Paloma O'Shea Artiñano, 1st Marquise of O'Shea, a patron of the arts; they have six children. His daughter Carmen was married to golfer Seve Ballesteros from 1988 to 2004.

In 2005 Forbes put Emilio Botín's net worth at $1.7 billion. Botín's eldest daughter, Ana Patricia Botín, was the President of Banesto from 2002 to November 2010 and is the CEO of Santander UK since December 2010, and widely viewed as his probable successor as President.

Botin and his family held undisclosed bank accounts in Switzerland since 1937. Those accounts were discovered by the Spanish tax authorities in 2010. Botin and his family settled voluntarily the case paying a bill of €200 million. In 2012, Spain's High Court dropped a tax evasion probe for these issues, stating that Mr Botin and his family had satisfied Spanish tax authorities with the €200 million settlement.

During his presidency, Banco Santander was named 2012 'Best bank in the world', the third time that the bank had received this award in the past seven years.

He died on 10 September 2014 of a heart attack in Madrid. Botín was survived by his six children and seventeen grandchilden. Botin's eldest daughter Ana Botin, previously head of Santander's British business, was appointed as new chairwoman after his death.