Lahiru is a given name. Notable people with the given name include:

• Lahiru Fernando (born 1994), Sri Lankan cricketer
• Lahiru Gamage (born 1988), Sri Lankan cricketer
• Lahiru Jayakody (born 1994), Sri Lankan cricketer
• Lahiru Jayaratne (born 1991), Sri Lankan cricketer
• Lahiru Kumara (born 1997), Sri Lankan cricketer
• Lahiru Madushanka (born 1992), Sri Lankan cricketer
• Lahiru Milantha (born 1994), Sri Lankan cricketer
• Lahiru Perera (born 1984), Sri Lankan singer, musician and music producer
• Lahiru Samarakoon (born 1997), Sri Lankan cricketer
• Lahiru Sandaruwan (born 1991), Sri Lankan cricketer
• Lahiru Sri Lakmal (born 1989), Sri Lankan cricketer
• Lahiru Thirimanne (born 1989), Sri Lankan cricketer
• Lahiru Udara (born 1993), Sri Lankan cricketer
• Lahiru Weragala (born 1989), Sri Lankan cricketer