Youth of Today is an American hardcore punk band, initially active from 1985 to 1990 before reforming in 2010. The band played a major role in establishing the "Youth Crew" subculture of hardcore, both espousing and evolving the philosophies of the straight edge and vegetarian lifestyles.

Straight edge is a subculture of hardcore punk whose adherents refrain from using alcohol, tobacco and recreational drugs in reaction to the punk subculture's excesses. Some adherents refrain from engaging in casual sex, follow a vegetarian or vegan diet and do not consume caffeine or prescription drugs. The term "straight edge" was adopted from the 1981 song "Straight Edge" by the hardcore punk band Minor Threat.