Quinoa (Spanish quinua) is a species of goosefoot (Chenopodium) grown as a crop primarily for its edible seeds. It is a pseudocereal rather than a true cereal as it is not a grass. Its leaves are also eaten as a leaf vegetable, much like amaranth, but the commercial availability of quinoa greens is currently limited.

The Incas, who held the crop to be sacred, referred to quinoa as "chisaya mama" or "mother of all grains", and it was the Inca emperor who would traditionally sow the first seeds of the season using 'golden implements'.