Look up one-to-many in Wiktionary, the free dictionary.

One-to-many may refer to:

• Fat link, a one-to-many link in hypertext
• Multivalued function, a one-to-many function in mathematics
• One-to-many (data model), a type of relationship and cardinality in systems analysis
• Point-to-multipoint communication, communication which has a one-to-many relationship