ABSTRACT I argue, counter‐intuitively, that under certain conditions many people are under some moral requirement to attempt to bring children into being . There is only rarely a strict obligation to have children, but more moderate, inclining moral considerations in favour of having children, have a place in our moral world. I begin by considering a large number of arguments in favour and against the possibility of an obligation to have children. Then I examine when the weight of one set (...) of arguments is greater. And I conclude by pointing out some general lessons from the discussion. (shrink)