ABSTRACT I argue that people have a right to self‐determination when they are plainly predominant in a certain territory and do not violate the civil liberties of minorities. But there is no self‐determination without the preservation of self‐identity and the cultural preservation that goes with its secure existence. So to preserve autonomy and self‐determination people must preserve their cultural identity and this cannot be securely sustained in modern conditions without a nation‐state concerned to nourish that identity. Such considerations support a (...) right to secession when certain conditions are met. The conditions are that the people in question have a cultural identity, live in a distinct territory which they have inhabited for a long time, form an extensive majority, and respect the civil liberties of the minorities living in that territory (as well as elsewhere). Where they are such a group they have a right to secede from a larger state to which they are historically attached. These conditions, I argue, are met in Quebec. (shrink)