U.S. State Department Spokesman John Kirby conveyed condolences to the families of those killed on March 13 and wished a quick recovery to the wounded.
“We reaffirm our strong partnership with our NATO ally Turkey in combating the shared threat of terrorism” he said.
U.S. Ambassador to Turkey John Bass said in a tweet that he was “deeply saddened and horrified by the attack in Ankara.”
“We extend our deepest condolences to victims and their families,” he said.
Russian President Vladimir Putin also condemned the attack, Kremlin spokesman Dmitry Peskov said March 13.
“Vladimir Putin condemns the brutal terrorist attack in Ankara… The Russian president mourns together with all the Turkish people, who suffered another terrorist attack, in connection with numerous human victims” Peskov told reporters.
British Prime Minister David Cameron said he was “appalled.”
French Foreign Minister Jean-Marc Ayrault described it as a “cowardly attack.”
U.N. Secretary-General Ban Ki-moon also condemned the bombing in Ankara and sent his “heartfelt condolences” to the victims' families.
“The United Nations continues to support and stand in solidarity with the people and the government of Turkey at this trying time,” the official statement said.
Turkey's eastern neighbor Iran released a statement by its foreign ministry spokesperson, Hossein Jaber Ansari, saying the country shared the pain of the Turkish people and state while condemning the terrorist attack.
Armenian spokesperson Tigran Balayan extended his condolences via Twitter, saying the country “deplores the victims of [the] Ankara explosion” in a tweet shared on March 13.
The government of Spain also expressed solidarity with Turkish officials in their “fight against terror.”
“Spain expresses its belief that the perpetrators of the attack will be brought before justice shortly” the statement said.
Gulf countries, including Qatar, Kuwait and Saudi Arabia, released messages condemning the attack while Jordan expressed support to Turkey's fight against terror.
“We condemn this criminal act, which contradicts humanitarian values and monotheistic religions, that killed innocent people,” the Qatari foreign ministry said.
Saudi Arabia's King Salman sent a message of condolence to Turkish President Recep Tayyip Erdoğan, underlining the attack was unacceptable.
“We were saddened to learn about the terror attack in Ankara, which is incompatible with any human or ethical values” Salman said, stressing his country “forcefully condemned the attack.”