A utility knife is a type of knife used for general manual work purposes. It is a versatile tool that can be used for a variety of tasks, including cutting cordage, cutting/scraping hides, butchering animals, marking cut lines, trimming plastic or wood materials, cutting tape, cord, strapping, cardboard, or other packaging material, and more. There are different types of utility knives, including fixed-blade knives, folding knives, retractable knives, and replaceable-razor blade knives. The latter type is sometimes called a Stanley knife, after a prominent brand.

In addition to general manual work, there is also a utility knife for kitchen use, which is sized between a chefs knife and paring knife. It is a multipurpose tool used for a variety of food prep tasks, such as slicing hard cheeses, chopping nuts, slicing mid-sized fruits and veggies, rough-chopping herbs and other greens, slicing bagels, buns, and sandwiches, and more. Kitchen utility knives come in both serrated and straight blade styles, and have scalloped edges and slightly longer blades than normal paring knives.

Overall, a utility knife is a great tool to have on hand for a variety of tasks, whether in the general workplace, construction industry, or kitchen.