Seed is used to refer to:

• The encased plant embryo is called a seed.
• In Buddism and Hinduism the term seed, or bija is used as a metaphor for the origin or cause of things.
• Pseudo-random Seed is also a term associated with cryptography and Pseudo-random number generation.
• A seed crystal is a small crystal from which a larger single crystal is to be grown.
• A Seed in Final Fantasy VIII is a mercenary working for a Garden.
• Seeding is the process used to rank competitors within a sport in a single-elimination tournament.