The United Nations (a group of countries) created a list of these rights called the United Nations Convention on the Rights of the Child (UNCRC). There are 54 articles on the list. 42 of these are rights for children and young people and the rest are about how government make sure you can have these. Almost all the countries in the United Nations have signed up to these promises.
You can find out more by viewing this animation:
The person who promotes, protects and safeguards your rights in Northern Ireland is the Commissioner Koulla Yiasouma.