Yes for some things, no for others. General board control, stance, balance, body movement for some tricks, etc: skateboarding definitely helps. There are some t

Yes for some things, no for others. General board control, stance, balance, body movement for some tricks, etc: skateboarding definitely helps. There are some things that will feel unnatural at first though if you have skateboarded for a long time: 1) You want your weight biased towards your front foot on a snowboard, when you get competent at riding you will be doing a lot of control with the front foot. This is the opposite to skateboarding, where leaning on the front leg will cause you to fall over very quickly. 2) Toeside turns on a snowboard are utterly counterintuitive because there's no real mapping to anything on a skateboard (unlike heelside which could be considered like a fs powerslide on a skateboard) - you have to push your shins into your boots. Maybe it's a bit like carving on a longboard, but not so much. The whole turning thing is the main difference - on a snowboard you use your front foot and your edges, on a skateboard you just pivot on the trucks. (Source: 20 years as a skateboarder, now spend about 30 days a year on the slopes instead).