NH 43 may refer to:

• National Highway 43 (India)
• New Hampshire Route 43, United States

• Coneto de Comonfort
• Coneto de Comonfort Municipality
• Coneto de Comonfort (municipality)
• Conewago Chapel
• Conewago Creek (disambiguation)
• Conewago (disambiguation)
• Conewago Mountains
• Conewago Township, Pennsylvania (disambiguation)
• Conewago Trail Creek
• Conewago Valley School District
• Conewango (disambiguation)
• Conewango Swamp Wildlife Management Area
• Conewango Township, Pennsylvania
• Coneweb spider
• Cone wrench
• CONEX
• Conexin
• Conexion Caribe
• Conexion TV Canal 2
• ConExpo
• CONEXPO
• CONEXPO-CON/AGG
• Con Express
• ConeXpress
• Conexus Credit Union