There are at least four ways in which old age and migration cross each other’s paths. First of all, there are people who migrated for economic reasons, usually at a relatively young age, and who have grown old in a foreign country. Secondly, there are older people who migrate when (or because) they are old: in Europe, they are mostly from the affluent northern countries and travel southward. Thirdly, there is increasing employment of, and demand for, immigrant workers in old-age institutions in the northern countries.