You will need a UK ETA if you:
• Are a national of a country that does not require a visa to visit the UK (including
EU nationals).
• Are traveling to the UK for a short stay (up to six months).
• Do not hold a UK visa, Biometric Residence Permit (BRP), or Biometric Residence
Card (BRC).
British and Irish nationals do not require an ETA.
Check if your nationality is eligible for an ETA and apply here.