R0

R0 or R00 may refer to:

• .r00, a software file extension
• Brussels Ring, a motorway in Belgium
• Haplogroup R0, formerly known as haplogroup pre-HV
• R₀, Basic reproduction number in epidemiology
• R₀, Net reproduction rate in population ecology and demography
• Samsung YP-R0, a digital audio player

See also

• RO (disambiguation)
• 0R (disambiguation)