An analytical parametric study has been conducted to identify the relative significance of several pertinent parameters that are thought to govern the horizontal loading capacity of suction piles. The parameters studied include: the point of horizontal load application, diameter of flange, pile diameter, seafloor soil strength, pile diameter to length ratio, and layered soil properties. Results of the analytical parametric study on each parameter are summarily included and discussions are provided, which can be used in the future for the optimum design of suction piles.