I seek to investigate the relationship, if exits, between foreign bank penetration (FBP) and the determinants of bank performance, namely domestic bank assets (DB), domestic credit (CREDIT), and banking profi tability (PRO) in Turkey using quarterly data from 1994Q1 to 2009Q4, while controlling for GDP and the event of the 2001 fi nancial crisis. Using the Granger causality, impulse response function and variance decomposition, the short run dynamics are examined. The outcome of the Granger causality test indicates that there is unilateral causality, which runs from domestic bank assets to FBP at the 10% level. Moreover, I also fi nd feedback causality between FBP and CREDIT at the 5% level. By employing impulse response functions, my fi ndings reveal that rising foreign bank assets in Turkey tend to increase domestic bank assets and credit availability in short run, and vice versa. Surprisingly, no signifi cant impact of FBP on profi tability in the banking sector is observed.