Title:Hydrodynamical Simulations of the Barred Galaxy NGC 4314: Gas Orbits in the Bar Region Abstract: We report the results of a numerical simulation of the barred galaxy NGC 4314. We start with a gaseous isothermal, non-self gravitating disk, initially in rotational equilibrium, which is perturbed by the gravitational potential of the bar estimated in Quillen et al. (1994) using near infrared observations. We then calculate the gas orbits in the region of the bar and compare them with stellar orbits obtained by Patsis (2006).