Is parkour illegal

Parkour is not illegal. However, there may be legal implications for freerunners (freerunning is a form of Parkour, an urban sport of acrobatics and dance, rather than running from place to place) if they practice their sport without permission on private property or are found to be loitering in a public place. It is also illegal (and unethical) to use Parkour to flee from police, but this is no different than evasion without Parkour.