《伦敦宪报》（London Gazette）是英国政府及英国主要的官方传播媒体之一，一般法令通告都须要在伦敦宪报内刊宪。《伦敦宪报》自1665年11月7日开始刊行，声称为英格兰历史最悠久的报纸，和全英国连续刊行时间最长的报纸。不过，位于斯坦福的《水星报》及纽卡素的《周报》亦持有类似的声称。《伦敦宪报》并不如一般报纸，报导一般新闻时事，发行流通量也不广泛。

除《伦敦宪报》外，英国政府其他官方报纸还包括《爱丁堡宪报》及《贝尔法斯特宪报》，这两份宪报转载《伦敦宪报》内牵涉全国的内容之余，亦会分别加入有关苏格兰及爱尔兰地区的报导。《伦敦宪报》本身亦不只交代全国性事务，涉及英格兰的事务也会在伦敦宪报内刊登，然而，那些只牵涉苏格兰及爱尔兰的报导，均需要在《伦敦宪报》内刊登。

The London Gazette is one of the official journals of record of the British government, and the most important among such official journals in the United Kingdom, in which certain statutory notices are required to be published. The London Gazette claims to be the oldest surviving English newspaper and the oldest continuously published newspaper in the UK, having been first published on 7 November 1665 (Old Style) as The Oxford Gazette. This claim is also made by the Stamford Mercury and Berrow's Worcester Journal, because the Gazette is not a conventional newspaper offering general news coverage. It does not have a large circulation.