“In democracies, decisions are made based on what the people say. I think our government will speak with the opposition and come to a decision,” he said, reacting to crowds in Istanbul calling for capital punishment.
“We cannot delay this anymore because in this country, those who launch a coup will have to pay the price for it,” he told supporters after attending funerals for the putsch victims.
In the aftermath of Friday’s foiled coup, there have been frequent calls from thousands of Erdogan supporters for capital punishment to make a return.
Turkey abolished the death penalty in 2004 under reforms aimed at obtaining European Union membership.
Reinstatement would create further issues between the EU and Ankara in the already stalled membership talks.
Erdogan repeated calls for the United States to extradite Fethullah Gulen, blaming the coup on the US-based Islamic preacher and his followers, which he describes as a terrorist organisation.
Gulen condemned the military uprising “in the strongest terms” in a rare interview with reporters in Pennsylvania and rejected charges of being the coup mastermind, suggesting Erdogan may have staged it himself.
Erdogan earlier broken down in tears at the funeral of his long-time friend Erol Olcak and his 16-year-old son who were shot dead on Friday on the Bosphorus bridge.