Omar Hashi Aden (Somali: Cumar Xaashi Aaden, Arabic: عمر هاشي آدم) (died 18 June 2009) was a politician from the Hiiraan region of Somalia, and he was a member of parliament under the rule of Siad Barre; he was forced to flee to Eritrea during the Somali Civil War.

He was a member of the Transitional Federal Government of Somalia, eventually rising to Security Minister.

[1] Before the Ethiopian invasion of Somalia, he had been a former member of parliament in exile in Eritrea.

[2] Under President Sharif Sheikh Ahmed, Aden was appointed Minister of Security of Somalia, and he took part in the struggle against al-Shabaab and the other Islamist militants.

Somalia's president Sharif Sheikh Ahmed blamed Al-Shabaab—accused of having links with Al-Qaeda, which later claimed the attack.