  We study the properties of the light pseudoscalar mesons in a three flavor
chiral quark model with nonlocal separable interactions. We concentrate on the
evaluation of meson masses and decay constants, considering both the cases of
Gaussian and Lorentzian nonlocal regulators. The results are found to be in
quite good agreement with the empirical values, in particular in the case of
the ratio f_K/f_pi and the anomalous decay pi^0 --> gamma gamma. In addition,
the model leads to a reasonable description of the observed phenomenology in
the eta-eta' sector, even though it implies the existence of two significantly
different state mixing angles.
