Wafu dressing, literally "Japanese-style dressing", is a vinaigrette-type salad dressing based on tosazu, popular in Japan.
The standard wafu dressing consists of a mixture of Japanese soy sauce, rice vinegar, mirin, and vegetable oil. There are many variations flavoured with additional ingredients such as aonori, shiso, grated ginger, katsuobushi, umeboshi puree, wasabi, or citrus fruits such as lemon or yuzu. A variation incorporating sesame oil is called chūka dressing, meaning "Chinese dressing", and a salad dressed with chūka dressing is called chūka-fū salad, meaning "Chinese-style salad".