The lower and higher age limits of the young population are specified in the Law on Youth Policy Framework as follows: A young person is a person between the ages of 14 and 29 (Article 2).

The following sub-groups within the main youth age group are established in relation to specific policy measures in the same Law on Youth Policy Framework: 

1) Youth with fewer opportunities - youth who do not have the same conditions as their peers to develop their competencies and activities, because they live in unfavourable conditions or experience social, economic, educational, cultural, geographical difficulties, have a disability and/or health problems;

2) Inactive young persons - young persons who do not study, do not work under an employment contract or independently, do not have other legal relationships equivalent to employment, do not perform unpaid employment activities, or is not looking for work;

3) Foreign Lithuanian youth - the youth of Lithuanian origin living in foreign countries.

Other target groups of young people are defined in the same law:

1. Youth organization - an association established to represent youth and/or youth interests in accordance with the procedure established by the Law on Associations of the Republic of Lithuania, of which at least 2/3 of the members are young people and/or associations representing the interests of young people, each of which is at least 2/ 3 members are young people.

2. The Council of Lithuanian Youth Organizations is a youth organization, the main objective of which is to unite youth and organizations working with youth on the scale of the Republic of Lithuania and to represent them.

3. The World Lithuanian Youth Union is a foreign Lithuanian youth organization whose main activity goal is to unite foreign Lithuanian youth organizations and represent them on a global scale.

4. The council of youth organizations of the municipality is a youth organization, the main purpose of which is to unite youth organizations operating in the territory of the municipality and to represent them.

5. Organization working with youth - a legal entity, one of the objectives of which is to work with youth.

6. Foreign Lithuanian youth organization - a legal entity, other organization or their branch, representative office established in accordance with the procedure established by the legislation of the country of residence to represent youth and/or the interests of youth, and at least 2/3 of the members of which are foreign Lithuanian youth.