A roller docker, rolling docker, dough docker, roto-fork, or simply docker is a food preparation utensil which resembles either a small, spiked rolling pin, or a small rotary tiller. It is used to pierce bread dough, cracker dough, pizza dough or pastry dough to prevent over rising or blistering.^[1] This specialized tool is more commonly found in professional bakeries than in homes that only do light or occasional baking.

Roller dockers come in a variety of materials, including nylon, plastic, and steel.