No, peanut butter, especially the natural versions, does not contain trans fats. Most of the fats in peanut butter are monounsaturated and polyunsaturated fats, which are healthier types of fat. It's worth noting, however, that some brands of processed peanut butter may contain small amounts of trans fats.
So, it's important to read the labels when buying peanut butter. Look for natural, unsweetened varieties and avoid brands that list partially hydrogenated oils among their ingredients. Doing so can help ensure that your peanut butter is a healthy choice and free from trans fats.