9th meridian may refer to:

• 9th meridian east, a line of longitude east of the Greenwich Meridian
• 9th meridian west, a line of longitude west of the Greenwich Meridian

• Jaguaricatu River
• Jaguar (Icelandic band)
• Jaguar IM
• Jaguari Mirim River
• Jaguar Independent Rear Suspension
• Jaguar independent rear suspension
• Jaguaripe
• Jaguari River (Caí River)
• Jaguari River (Paraiba do Sul)
• Jaguari River (Paraíba do Sul)
• Jaguari River (Piracicaba River)
• Jaguar IRS
• Jaguarizinho River
• Jaguar! (Knott's Berry Farm)
• Jaguar-Land Rover
• Jaguar Land Rover
• Jaguar Land rover
• Jaguar Land Rover Gaydon Centre
• Jaguar Lives!
• Jaguar Lives
• Jaguar Love (EP)
• Jaguar Mark I
• Jaguar Mark VII
• Jaguar Mark VIII
• Jaguar missile