It is trite to observe that the past three decades have seen an ‘explosion’ in comparative law. Equally well-worn territory is the fact that constitutional law has been a particular beneficiary of the comparative trend, despite the fact that for much of the twentieth century comparative lawyers tended to avoid public law topics. However, one field of law that has been conspicuously absent from the boom in comparison, at least outside of Europe, is administrative law. This article analyses why the use of comparison has been so vastly different between the two areas of public law. It then surveys some recent developments in administrative law and points to a number of aspects of the field that would benefit from the wider use of comparative methods across the world.