The Defence of the Realm Act 1798 (38 Geo. 3. c. 27) was an act passed by the Parliament of Great Britain "to enable His Majesty more effectually to provide for the Defence and Security of the Realm during the present War, and for indemnifying Persons who may suffer in their Property by such Measures as may be necessary for that Purpose".
The whole act was repealed by section 1 of, and the schedule to, the Statute Law Revision Act 1871 (34 & 35 Vict. c. 116).