Tetragram or tetragraph generally refers to any a group of four letters, but more specifically may refer to:
- Tetragraph, in orthography, referring to a sequence of four letters that represent sounds not necessarily corresponding to those of the individual letters
- Tetragrammaton, a Hebrew name for God written as YHWH
- Complete quadrilateral, a geometric system of four lines and their six points of intersection
- Tetragraph (from Chinese 方塊字; fāngkuàizì), referring to Chinese characters written on squared graph paper
- A symbol with four lines in Taixuanjing
- A degenerate star polygon, usually represented as a compound of two digons
See also
- All pages with titles containing Tetragramma, including multiple scientific names
- Tetragrammaton (disambiguation)
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