Spain at the 1966 European Athletics Championships had less than ten athletes, one of whom was Mariano Haro(born May 27, 1940).
Mariano Haro Mariano Haro Cisneros (born May 27, 1940) is a former Spanish athlete, competing in the long-distance events. Jose Luis Sanchez Paraiso Alberto Esteban Javier Alvarez Carlos Perez Luis Garriga Ignacio Sola 
