The woman, named as Gena Hill, 59, and from Kentucky, was part of a group on their way for a day tour to Dingle and had stopped at Inch, a popular surfing spot because of the strength of its waves.
Ms Hill was standing on the strand at the edge of the water shortly after 10am when struck by a truck used to transport surfing equipment.
It is understood the truck was reversing onto the beach with the equipment. Her husband was among the party on the tour.
Ms Hill, a grandmother, was pronounced dead at the scene. Her body was removed to Kerry General Hospital.
A weekend accident also claimed the life of a motorcyclist in Co Sligo. The 46-year-old man was fatally injured when his bike was in collision with a van at Stonepark, Ballymote at around 10.45am on Saturday morning.
Meanwhile Gardaí issued a fresh appeal for witnesses to a fatal crash which cost another motorcyclist his life at Carrigeen, Croom, Co. Limerick last Friday. That accident happened at around 4pm when the motorcyclist, who was in his 20s, collided with a car.
The weekend deaths brought the total number of people killed in traffic accidents to date this year to 95.