Cash flow and leverage are two main components of any business firms. A good level of cash flow and leverage shows a desirable performance for business organizations. This paper presents an empirical investigation to study the relationship between combined leverage and cash flow in terms of board of director’s ownership and corporate governance structures. The study selects 86 randomly selected firms listed on Tehran Stock Exchange over the period 2009-2013. Using some statistical tests, the survey has indicated that there was a meaningful relationship between leverage and cash flow for firms with different corporate governance structures. The study has also determined that there was a meaningful relationship between leverage and cash flow for firms with different board of director’s ownerships.