In this study, it was aimed to investigate the effect of foliar boron fertilization on different apple varieties. Fort his purposes, five apple varieties as Mondial Gala, Red Chief, Scarlet Spur, Breaburn and Fuji were used. For foliar spraying, 0 and 100 mg B l^-1 containing solutions were sprayed to the leaves before flowering with fifteen days interval. At the end of the experiment it was seen that leaf boron concentrations increased with foliar boron fertilization in varieties, except for Breaburn. In all varieties, fruit yield increased with the application and the increases obtained were significant in the varieties except for Mondial Gala and Breaburn. In general, leaf boron spraying did not affect significantly examined quality parameters. It was seen that apple varieties were affected differently from the foliar boron fertilization.