Rowhani, a former top nuclear negotiator, won 16.4 million of the 32.1 million votes counted by 7 pm (1430 GMT), the ministry said.
If repeated at the remaining polling stations, his 50.99 percent tally would be enough to give him outright victory without recourse to a second-round run-off.
Tehran Mayor Mohammad Baqer Qalibaf was in distant second place with 5.07 million votes or 15.76 per cent.
He was followed by Saeed Jalili, Iran's current top nuclear negotiator, with 11.38 percent and former Revolutionary Guards commander Mohsen Rezai with 11.16 percent.
More than 50.5 million Iranians were eligible to vote to elect a successor to Mahmoud Ahmadinejad, who was constitutionally barred from standing again after serving two consecutive terms.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
