M94 or M-94 may refer to:

• Messier 94, a spiral galaxy in the constellation Canes Venatici
• M-94 (Michigan highway), a state highway in Michigan
• M-94, a cryptographic device

• Common hourglass tree-frog
• Common hour-glass tree frog
• Common hour-glass treefrog
• Common hour glass treefrog
• Common hour glass tree-frog
• Common hourglass treefrog
• Common hourglass tree frog
• Common hourglass tree frogs
• Common hour glass treefrogs
• Common hour glass tree-frogs
• Common hour-glass tree frogs
• Common hour-glass tree-frogs
• Common hour-glass treefrogs
• Common hourglass treefrogs
• Common hourglass tree-frogs
• Common hour glass tree frogs
• Common housecat
• Common House Gecko
• Common House Martin
• Common house-martin
• Common Hovea
• Common ICAO Data Interchange Network
• Common iceplant
• Common Idia Moth
• Common Iliac Vein