Olazábal

 Olazábal is a Basque surname. Notable people with the surname include:


 * Tirso Olazábal Lardizábal (1842–1921), Spanish politician
 * Juan Olazábal Ramery (1860–1937), Spanish politician
 * Francisco Olazábal (1886–1937), Mexican Pentecostal evangelist
 * José María Olazábal (born 1966), Spanish golfer
 * Oier Olazábal (born 1989), Spanish footballer