Ganguro (ガングロ) is an alternative fashion trend among young Japanese women which peaked in popularity around the year 2000 and evolved from gyaru.

Alternative fashion or alt fashion is fashion that stands apart from mainstream, commercial fashion. It includes both styles which do not conform to the mainstream fashion of their time and the styles of specific subcultures. Some alternative fashion styles are attention-grabbing and more artistic than practical, while some develop from anti-fashion sentiments that focus on simplicity and utilitarianism.