艾勤賢（Kevin Barry Egan，1947年—2018年6月17日），係香港大律師，原籍紐西蘭同澳洲。英治時期，佢做過香港政府律政署副首席檢控官，專責廉署案件。後來佢私人執業，亦專接廉署案件。同律師林炳昌及前廉署執行處副處長徐家傑被合稱為廉署「天、地、人」三魔。2018年6月17號，因食道癌或喉癌復發離世，終年70歳。
Kevin Barry Egan (1947 – 17 June 2018) was a Hong Kong barrister, originally from New Zealand and Australia. During the British Rule, he was the Deputy Chief Public Prosecutor of the Attorney's Chambers of Justice of the Hong Kong Government, where he was responsible for ICAC cases. Later, he went into private practice and also specialised in ICAC cases. Together with solicitor Lam Ping-cheong and former Deputy Director of Operations of the ICAC, Mr Tsui Ka-kit, they are collectively known as the "Three Demons of Heaven, Earth and People" of the ICAC. On June 17, 2018, he passed away due to a recurrence of esophageal cancer or laryngeal cancer at the age of 70.