Omicron (disambiguation)

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

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

Science

• 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: )

Other uses

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