Preheat oven to 350 degrees F. Grease cookie sheets or line with parchment paper.
In a large bowl, cream together butter, sugars and vanilla until light and fluffy. Add eggs one at a time, beating well with each addition. Combine flour, baking soda, and cinnamon, and gradually stir into creamed mixture. Fold in rolled oats and raisins.
Drop rounded spoonfuls onto prepared cookie sheets. Bake for 12 to 15 minutes in preheated oven. Remove cookies to wire rack and cool completely. Yield: Approx