Cyprus is one of the 30 European countries that are part of the ETIAS program. This means that travelers from visa-exempt countries will need ETIAS authorization to visit Cyprus for short stays (up to 90 days in any 180-day period).
If you are a citizen of an EU/Schengen country, you do not need ETIAS to travel to Cyprus. However, if you hold a passport from one of the 59 visa-exempt countries, you will need to obtain ETIAS before your trip.