Tracked by Evreward since 2005, OshKosh B'Gosh offers coupons, cash back rebates and rewards, with savings as high as 70% off. OshKosh B'Gosh discount coupons are somehwat rare, available a few times each year, but are often more valuable than similar merchants. Even when OshKosh B'Gosh doesn't have a coupon, you can always get up to 20% cash back, and other great rewards, with every purchase.