Invasion of privacy describes unlawful or unjustified interference with an individual’s private life, personal information, communications, image or personal space. In UK and Irish legal practice it is a descriptive term, not a single codified cause of action, and is addressed through a combination of privacy, data protection, confidentiality and harassment laws. In England & Wales and Northern Ireland, invasion of privacy is most often litigated through the tort of misuse of private information, breach of confidence, the Protection from Harassment Act, and data protection claims under the UK GDPR and Data Protection Act 2018. In Scotland, similar interests are protected mainly through breach of confidence, misuse of private information (developed in case law) and delictual claims, alongside data protection legislation. In Ireland, invasion of privacy issues arise under the Constitution (unenumerated right to privacy), the GDPR and Data Protection Act 2018, breach of confidence and harassment. Across all jurisdictions, typical contexts include media publications, covert recordings, excessive workplace monitoring, data breaches, intrusive surveillance, and misuse of personal images or information, balancing privacy rights against freedom of expression and other competing interests.