RF

Rf or RF may stand for:

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• Radio frequency, a term in broadcasting.
• Volumetric flow rate/"rate of flow" (Rf).
• RF connectors, electrical connectors designed to work at radio frequencies.
• RF, a Mazda piston engine.
• Rheumatoid factor, a blood test used to diagnose rheumatoid arthritis.
• Right fielder, a defensive position in baseball.
• Russian Federation, Russia, formerly part of the USSR.
• France (République française).
• Rutherfordium, the chemical element.