  We study a mean field approximation for the 2D Euler vorticity equation
driven by a transport noise. We prove that the Euler equations can be
approximated by interacting point vortices driven by a regularized Biot-Savart
kernel and the same common noise. The approximation happens by sending the
number of particles $N$ to infinity and the regularization $\epsilon$ in the
Biot-Savart kernel to $0$, as a suitable function of $N$.
