Two explosions went off in the predominantly Sunni south Baghdad neighbourhood of Dura, while at least three vehicles rigged with explosives were detonated in the mostly-Shiite areas of Baghdad Jadidah, Hurriyah and Bayaa.
The deadliest attacks struck in Dura, where at least six people were killed, and Baghdad Jadidah, where four were left dead.
The attacks were the latest in a protracted surge in nationwide violence that has left more than 650 people dead so far this month, sparking fears Iraq is slipping back into the all-out conflict that plagued it in 2006 and 2007.
No group immediately claimed responsibility for the attack, but Sunni militants including those linked to Al-Qaeda frequently set off coordinated bombings across the capital.
On Saturday evening, a wave of explosions across Baghdad killed 25 people, while 37 more died in a similar spate of attacks on Wednesday.
The countrywide unrest, coupled with a deadly standoff between security forces and anti-government fighters west of Baghdad, comes just months before parliamentary elections.