  We show that the condensate occupation of a superfluid Bose liquid quite
generally exhibits anomalously large fluctuations at finite temperatures. In
three dimensions, the variance scales like T^2 V^{4/3} at low T, generalizing
the result obtained by Giorgini, Pitaevskii, and Stringari for a weakly
interacting Bose gas. In two dimensions there is only a quasicondensate, and
the fluctuations are of the same order as the mean value.
