Iranian government spokeswoman Fatemeh Mohajerani on Tuesday said the country's leadership planned to raise its military budget by around 200%,
DW reports.
The announcement comes as tensions with arch-rival Israel rise and after retaliatory military strikes against it.
"A considerable raise that amounts to 200% has been witnessed in the country's defense budget," Mohajerani said without elaborating.
Iran and Israel have traded missile salvos for months, with Israel striking Iran on Saturday in retaliation for an Iranian missile barrage against Israel.
Tehran on Monday said it would "use all available tools" to respond to the attacks, which Israel said were against military targets.
Iran already has one of the Middle East's largest militaries, with more than 600,000 active troops and around 350,000 reservists.