No, Nutella is not vegan.
Nutella contains skim milk powder, which is derived from cow's milk. Since vegans abstain from consuming any animal products or byproducts, Nutella is not considered a vegan food. This core ingredient makes it unsuitable for those following a vegan diet.
Therefore, if you are following a vegan lifestyle, you should avoid Nutella. Be sure to check the ingredient list carefully when looking for vegan alternatives to chocolate hazelnut spreads.