Greek alphabet letters are used as math and science symbols.
| Upper Case Letter | Lower Case Letter | Greek Letter Name | English Equivalent | Letter Name Pronounce |
|---|---|---|---|---|
| Α | α | Alpha | a |  |
| Β | β | Beta | b | |
| Γ | γ | Gamma | g | |
| Δ | δ | Delta | d | |
| Ε | ε | Epsilon | e | |
| Ζ | ζ | Zeta | z | |
| Η | η | Eta | h | |
| Θ | θ | Theta | th | |
| Ι | ι | Iota | i | |
| Κ | κ | Kappa | k | |
| Λ | λ | Lambda | l | |
| Μ | μ | Mu | m | |
| Ν | ν | Nu | n | |
| Ξ | ξ | Xi | x | |
| Ο | ο | Omicron | o | |
| Π | π | Pi | p | |
| Ρ | ρ | Rho | r | |
| Σ | σ,ς * | Sigma | s | |
| Τ | τ | Tau | t | |
| Υ | υ | Upsilon | u | |
| Φ | φ | Phi | ph | |
| Χ | χ | Chi | ch | |
| Ψ | ψ | Psi | ps | |
| Ω | ω | Omega | o | |
* Second lower case sigma letter is used in word final position.
** Letter name pronounce might not be accurate - browser/os dependent.
| Egyptian hieroglyphs (3500 BC) |
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| Proto-Sinaitic alphabet (1800 BC) |
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| Phoenician alphabet (1200 BC) |
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| Greek alphabet (800 BC) |
