In Baghdad itself 64 corpses were recovered in the past 24 hours, with most of the victims executed with a gunshot wound to the head.
Dozens of those found were handcuffed and blindfolded and these execution-style killings are a pattern usually seen in the ongoing Shiite-Sunni sectarian violence.
Security officials also said three bodies were found in the restive city of Baquba, northeast of Baghdad, and two in the town of Suweira, south of the capital. One of the two bodies recovered from Suweira was headless.
The latest bout of bloodletting has once again raised fears of the war-torn country sliding into an all-out civil war.
Bombs rock Baghdad
On Wednesday, Baghdad was also hit by two car bombs that left another 28 people dead and scores more wounded.
In the deadliest attack, rebels killed 20 people and wounded 51 others in a car bomb attack against a police patrol in east Baghdad.
Interior ministry spokesman Brigadier General Abdel Karim Khalaf told AFP that the attack took place near a traffic police headquarters and five of those killed were policemen.
Meanwhile eight people were killed and 19 wounded when insurgents blew up a parked car loaded with explosives near two police patrols in eastern Baghdad.
A security official speaking on the condition of anonymity said that the dead include three policemen.
A series of mortar bomb attacks also left a civilian dead, while two bystanders were killed when gunmen attempted to kidnap the owner of Zakhura Money Exchange, a foreign exchange outlet in west Baghdad.
Thousands of people have died since the sectarian violence began surging across Iraq in February, but Baghdad remains the worst hit with dozens of bodies found every week.
Security pledge
The violence comes as Iraqi Prime Minister Nuri al-Maliki wrapped up his first official visit to Iran where he held talks with Iranian President Mahmoud Ahmadinejad and supreme leader, Ayatollah Ali Khamenei.
Mr Maliki’s visit won a pledge from the president for Tehran's help in restoring security to its insurgency-plagued neighbour.
In the wake of the attacks in Iraq, Iran condemned the "terrorist acts" and said it supported the Baghdad government's efforts to end the violence.
"Iran condemns terrorist acts in Iraq and gives its complete support to the Iraqi government and people in their fight against terrorism and criminal activity," a joint statement said, the IRNA agency reported.
But the United States reacted warily to Iran's pledge of unequivocal support in restoring security to Iraq, accusing Tehran of being "part of the problem" in the war-wracked country.
The Islamic republic has emerged as one of the strongest allies of the Shiite-dominated government in Baghdad after the fall of Saddam Hussein, but has also drawn criticism for allegedly aiding Shiite militants.
The US military in August accused Iranian forces of training and providing weapons to Shiite extremists in Iraq in order to carry out violent attacks in the war-torn country.