C97 may refer to:

• Ruy Lopez chess openings ECO code
• Malignant neoplasms of independent (primary) multiple sites ICD-10 code
• Lowell Airport (Indiana), in Indiana FAA LID
• Migration for Employment Convention (Revised), 1949 ILO code

C-97 may refer to:

• C-97 Stratofreighter, an aircraft

• Hurricane Florence (1994)
• Hurricane Florence (2000)
• Hurricane Floyd (1999)
• Hurricane force
• Hurricane forecast
• Hurricane Four (1941)
• Hurricane Four (1947)
• Hurricane Fox
• Hurricane Fox (1950)
• Hurricane Fox (1951)
• Hurricane Fox (1952)
• Hurricane Fran (1973)
• Hurricane Francelia (1969)
• Hurricane Francene (disambiguation)
• Hurricane Frances (1992)
• Hurricane Francesca (disambiguation)
• Hurricane Frances tornado outbreak
• Hurricane Frank
• Hurricane Frank (2010)
• Hurricane Fred
• Hurricane Fred 2009
• Hurricane Fred (2009)
• Hurricane Frieda (disambiguation)
• Hurricane Gabrielle (disambiguation)
• Hurricane Gail (1953)