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