The Greek alphabets originated from a modification of the Phoenician alphabets and in turn gave rise to the Gothic, Glagolitic, Cyrillic, Coptic, and possibly the Armenian alphabets, as well as the Latin alphabets.

The Greek alphabets have been used to write the Greek language since the 9th century BC. Each letter is a symbol for each vowel and consonant, and is the oldest alphabetic script in use today.

Besides being used for writing modern Greek, the Greek alphabets are used as mathematical symbols, particle names in physics, as names of stars, in the names of fraternities and sororities, in the naming of supernumerary tropical cyclones, and for other purposes.

Capital	Low-case	Greek Name	English
		Alpha	a
		Beta	b
		Gamma	g
		Delta	d
		Epsilon	e
		Zeta	z
		Eta	h
		Theta	th
		Iota	i
		Kappa	k
		Lambda	l
		Mu	m
		Nu	n
		Xi	x
		Omicron	o
		Pi	p
		Rho	r
		Sigma	s
		Tau	t
		Upsilon	u
		Phi	ph
		Chi	ch
		Psi	ps
		Omega	o