<span style="font-size:14px"><span style="font-family:Arial,Helvetica,sans-serif">Two hundred fourty four species of blue green algae have been listed and recorded in this investigation. The listed species belong to five main groups of cyanophyta, making up all together fourty six genus. It was found that blue green algae in Erbil represented (54%) of Iraqi blue green algae, and (11%) of all known algae in Iraq so far.</span></span>