English pronunciation of Greek letters

This table gives the common English pronunciation of Greek letters using the International Phonetic Alphabet (see help:pronunciation.) It is the pronunciation of the ancient Greek names of the Greek letters using the English teaching pronunciation (traditionally called "Erasmian"). Sometimes, especially in the sciences, the vowels will be pronounced closer to the Greek, for example /ˈpsiː/ instead of /ˈsaɪ/ for psi.

Greek	Greek name	English name	English pronunciation
Α α	άλφα	Alpha	/ˈælfə/
Β β	βήτα	Beta	/ˈbiːtə/, US /ˈbeɪtə/
Γ γ	γάμα	Gamma	/ˈɡæmə/
Δ δ	δέλτα	Delta	/ˈdɛltə/
Ε ε	έψιλον	Epsilon	/ˈɛpsɪlɑn/, UK also /ɛpˈsaɪlən/
Ζ ζ	ζήτα	Zeta	/ˈziːtə/, US /ˈzeɪtə/
Η η	ήτα	Eta	/ˈiːtə/, US /ˈeɪtə/
Θ θ	θήτα	Theta	/ˈθiːtə/, US /ˈθeɪtə/
Ι ι	γιώτα	Iota	/aɪˈoʊtə/
Κ κ	κάππα	Kappa	/ˈkæpə/
Λ λ	λάμδα	Lambda	/ˈlæmdə/
Μ μ	μι	Mu	/ˈmjuː/
Ν ν	νι	Nu	/ˈnjuː/, US /ˈnuː/
Ξ ξ	ξι	Xi	/ˈzaɪ/, UK also /ˈksaɪ/
Ο ο	όμικρον	Omicron	/ˈɒmɪkrɒn/, UK also /oʊˈmaɪkrən/
Π π	πι	Pi	/ˈpaɪ/
Ρ ρ	ρο	Rho	/ˈroʊ/
Σ σ ς (final)	σίγμα	Sigma	/ˈsɪgmə/
Τ τ	ταυ	Tau	/ˈtaʊ/
Υ υ	ύψιλον	Upsilon	/juːpˈsaɪlən/, /ˈʊpsɪlon/, US /ˈʌpsɪlɒn/
Φ φ	φι	Phi	/ˈfaɪ/
Χ χ	χι	Chi	/ˈkaɪ/
Ψ ψ	ψι	Psi	/ˈsaɪ/, UK also /ˈpsaɪ/
Ω ω	ωμέγα	Omega	/oʊˈmeɪgə/, UK also /ˈoʊmɪgə/