A Knife is a sharpened hand tool.

'Knife' may also refer to:

• The Knife, a swedish electropop group
• Martin "The Knife" De Knijff, a professional swedish gambler
• Knives (Babylon 5), and episode of the sci-fi series Babylon 5
• The Subtle Knife - A fantasy novel by Philip Pullman
• Knife Lake Township, Minnesota
• Knife (Game), a drinking game

Specific types of knives include the following:

In the kitchen:

• Kitchen knife
• Chef's knife
• Butter knife
• Boning knife

As a wartime accessory:

• Combat knife
• Fascine knife
• Bowie knife
• Trench knife
• Survival knife
• Butterfly knife

As tools:

• Pocket knife
• Utility knife - Also called a box cutter
• Xacto knife - A small, pen-like knife
• Marking knife - A tool used in woodworking
• Palette knife - A tool used in painting
• Liston knife - A surgical tool

Other knives:

• Mora knife
• Sheath knife
• Hot knife

'Kinives in fiction:'

• Special Forces Knife Techniques

• There is also the art of Knife throwing