佛号 (fó hào) literally means 'Buddha’s name' and refers specifically to the sacred names of Buddhas or bodhisattvas—most commonly 'Amitābha Buddha' (阿弥陀佛, Āmítuófó)—chanted in Mahayana Buddhist practice. The character 佛 means 'Buddha', while 号 means 'title', 'designation', or 'honorary name'; together, they denote a reverential, ritualized invocation rather than just any name.

This term is central to Pure Land Buddhism, where faithful repetition of a Buddha’s name—often silently or aloud, sometimes with prayer beads—is believed to cultivate mindfulness, purify karma, and support rebirth in a pure land. It is not used for secular naming or general titles; it carries deep spiritual weight and is almost always encountered in devotional, meditative, or funerary contexts.