Omicron (Ο or ο) is the 15th letter of the Greek alphabet.

Look up omicron, Ο, or ο in Wiktionary, the free dictionary.

Omicron, Omikron, Ο or ο may also refer to:

• SARS-CoV-2 Omicron variant, a variant of the virus that causes COVID-19
• Omicron (wasp), a genus of wasps
• Polynucleobacter necessarius, a bacterium originally designated as Omicron (German: Omikron)

• ο, ο, Οʹ, the number 70 in ancient, Byzantine and modern Greek numerals
• Omicron (film), a 1963 Italian film
• Omicron Hill, a summit in Alaska, US
• Omikron: The Nomad Soul, an adventure video game

Search for "omicron"  or "Ο" on Wikipedia.

• Omikronpapillomavirus, a genus of viruses
• All pages with titles containing omicron
• All pages with titles beginning with omicron
• All pages with titles containing ο (omicron)
• All pages with titles beginning with Ο (omicron)
• O (disambiguation)
• Omnicron (disambiguation)

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