What Qualifications are there to become a Olympian?

The requirements vary from country to country and sport to sport. The requirements for each sport are set by the governing body of that sport to meet the requirements as agreed to by the Olympic committee.

Also, getting into the Olympics is very hard. Some events are held where world-class athletes compete against each other in order to represent their country at the Olympics. The ones who perform the best are usually the ones who go.