The annual celebration, founded by the National Youth Association, aims to showcase the positive impact of youth work.
It also recognises the contributions of youth workers in supporting young people across local communities.
There are numerous activities planned throughout the week, including drop-in sessions at local secondary schools and Jersey Youth Service information stands at NatWest Bank and Grande Marche.
There will also be a glow-in-the-dark climbing party at Grand Vaux on Monday, a gaming night at St James on Tuesday, and an open evening featuring music and choir performances at St James on Wednesday.
Each individual youth club will also be celebrating with their own timetable of activities.