The aim of this study is to investigate the relationship between financial reporting quality and stock return volatility in firms listed in Tehran Stock Exchange (TSE). The population of this study consists all firms listed in Tehran Stock Exchange. 136 firms are selected to be investigated during the period of 2008 to 2013. Financial reporting quality is captured through financial reporting preciseness and modified Jones model. The results show that financial reporting quality (financial information preciseness and modified Jones model) does not affect stock return volatility. In addition, the results indicate that operating cash flow volatility, annual stock return and book to market value have positive significant relationship with stock return volatility. However, the results indicate that operating cash flow have a negative relationship with stock return volatility. Further, the results show that control variables of financial leverage and firms size have not a significant relationship with stock return volatility.