As a result of increased volatility in freely floating exchange rates, corporations and individuals were faced with currency risks after the 1970s. In order to manage these risks, new financial instruments -called derivatives- started to be used worldwide. They are currently used in a limited manner in Turkey. The main purpose of this thesis is to present the applications of over-the-counter currency derivatives in Turkey. Throughout the thesis, the reasons for lagging behind in the use of derivative instruments will be presented. Finally, policy recommendations will be made for the development of efficient currency derivatives markets.