A spearhead is the head of a spear. Early spearheads were made of rock or bone; more effective spearheads are fashioned of metal.

Spearhead can be used as a verb to describe aggressive leadership of an effort, such as the ratification of a law, the advancement of a belief, or the creation of an institution.

Spearhead can also refer to:

• Spearhead, a right wing UK magazine
• Spearhead, the U.S. Army 3rd Armored Division,
• Spearhead, a musical group, see Michael Franti
• _Allied_Assault, an expansion pack to the computer game Medal of Honor
• Spearhead, a British television series about life in the British Army
• Spearhead from Space, a Doctor Who serial
• Spearhead, a division of Reed Elsevier which is involved in arms trade.
• Melanesian Spearhead group, a forum of south pacific island nations.