We prove Berry-Esseen bounds for a general class of asymptotically nor
mal statistics which are functions of N weakly dependent random variab
les under easily verifiable conditions. In particular, we show, for so
me delta > 0, the validity of the bound O(N-1/2 log(delta) N) for U-st
atistics, studentized means, functions of sample means, functionals of
empirical distribution functions and linear combinations of order sta
tistics.