The head of an arrow.
- The pointed striking tip of an arrow, typically a knapped, wedge-shaped stone or a fitted metal cap.
- Something, such as a directional mark on a sign or drawing, having the shape of an arrowhead.
- Any of various aquatic or wetland perennial plants of the genus Sagittaria, having arrowhead-shaped leaves and panicles of white, unisexual flowers.
- The edible tubers of the Eurasian species S. sagittifolia or of the North American species S. latifolia.