Harris Smith may refer to:

• Plaxico Burress, NFL player who used this name as an alias
• Harris Smith (filmmaker), filmmaker and essayist, co-founder of Remodernist film

• Helmholtz system
• Helmholtz temperament
• Helmholtz theorem
• Helmholtz Theorem
• Helmholtz' theorem
• Helmholtz theorems
• Helmholtz theorem (vector calculus)
• Helmholtz watson
• Helmia ja sikoja
• Helmi Eliza
• Helmi Johannes
• Helmi Juvonen
• Helmina von Chézy
• Helmingham Hall
• Helminth disease
• Helminth diseases
• Helminthes
• Helminthiasis, animal
• Helminthic therapy
• Helminth infection
• Helminth infections
• Helminthoglypta
• Helminthoglypta allynsmithi
• Helminthoglypta callistoderma
• Helminthoglypta coelata