Human rights groups have condemned what they say is the unnecessarily high level of executions in the Pakistani province of Punjab.
The 15th person to be executed in a fortnight was hanged on Thursday.
Tauseef Munna was sentenced to death by an anti-terrorism court in 2002 for killing a four-year old boy.
Prosecution lawyers said that the boy was kidnapped from the town of Kamoke, and a demand was made for a 200,000 rupees ($3,316, £1,800) ransom.
Human rights groups have condemned the executions as "unjust and inhuman".
"We have grave reservations about the high level of exactions in Pakistani Punjab in recent days," a spokesman for Amnesty International told the BBC News website.
"We think the many of the convictions are not safe and not satisfactory, quite apart from our ethical objections to capital punishment."
The president has the power to overturn death sentences
The prosecution in the trial of Tauseef Munna said that the boy was killed by him when he did not receive ransom money.
His appeal against his guilty verdict was turned down by the Lahore High Court in June 2002.
Three years later, the court also rejected his appeal against the death penalty, and President Pervez Musharraf turned down an appeal for clemency.
On Wednesday, five people who were convicted of gang rape were hanged in Sialkot prison.
On 4 July three people were hanged in the province's Gujranwala prison, and on 29 June, four people convicted of serious sexual offences were executed.
Two other convicts have also been hanged for separate offences in Punjab over the last two weeks.