Yes! The manufacturer claims that this product is lactose free.

Is (3 Pack) Mario® Sliced Black Olives with Jalapeño 2.25 oz. Can Lactose Free?

Yes! The manufacturer claims that this product is lactose free.
Lactose Free? (3 Pack) Mario® Sliced Black Olives with Jalapeño 2.25 oz. Can | Spoonful