How many letters are in the Greek alphabet?

The modern Greek alphabet has 24 letters, from alpha (Α/α) to omega (Ω/ω). This tool lists every one with both case forms.

What is the tonos and the diaeresis?

The tonos (΄) is the modern Greek stress accent placed over a vowel, as in ά. The diaeresis (¨) marks a vowel that is pronounced separately, as in ϊ. Both are shown as combining and precomposed examples.

Why does lowercase sigma have two forms?

Sigma is written σ in the middle of a word and ς at the end of a word. This word-final form is called final sigma and has its own Unicode point, U+03C2.

What is the difference between Greek and Latin look-alike letters?

Greek Α and Latin A look identical but have different Unicode code points (U+0391 versus U+0041). Copying the correct Greek character matters for search, sorting, and validation.

Is anything sent to a server?

No. The whole reference is static data rendered in your browser, so filtering and copying happen entirely on your device.

Greek Alphabet Reference

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The Greek alphabet has 24 letters, each with an uppercase and a lowercase form, and modern Greek adds the tonos stress accent and the diaeresis diacritic. This reference shows every letter with its Unicode code points, a standard Latin transliteration, and the letter name written in Greek, so you can copy the exact character you need.

How it works

Each letter occupies a fixed block in Unicode. Uppercase letters run from U+0391 (Alpha) and lowercase from U+03B1 (alpha), with a few historical exceptions. The lowercase sigma has two glyphs: σ used inside words and the final sigma ς (U+03C2) used at the end of a word. The table pairs each glyph with its code point so you can distinguish a true Greek letter from a Latin look-alike — for example Greek Α (U+0391) versus Latin A (U+0041).

Accents and diacritics

Modern monotonic Greek uses a single accent, the tonos, placed over the stressed vowel: ά έ ή ί ό ύ ώ. The diaeresis splits a vowel that would otherwise form a digraph: ϊ ϋ. Both diacritics exist as precomposed characters and as combining marks (U+0301 tonos, U+0308 diaeresis) that you can add to a base vowel.

Tips

Use the filter to jump straight to a letter by Greek name or Latin transliteration. Click any glyph to copy it to your clipboard. When pasting Greek into code or data files, copy from this table rather than retyping a Latin look-alike, which avoids subtle mismatches in sorting and search.