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Iran bought 80. Took delivery of 79. Shipped one off to Russia when the Shah fell, prompting some mission system and weapon upgrades on our own, since the jet, and its missiles, were compromised.
https://en.wikipedia.org/wiki/Grumman_F-14_Tomcat#Operators
Iran flew them with great success in the Iran-Iraq war in the 1980s.
Part of the reason that we shredded most of the retired Tomcats was to keep Iran from getting spare parts (there are some easily removed high wear items that could be stripped from museums by unscrupulous individuals).
Iranian F-14s were still considered as part of the air threat in the most recent conflict.
https://en.wikipedia.org/wiki/Islamic_Republic_of_Iran_Air_Force#Current_inventory
The F-14 pilot with the most kills is Iranian.
https://en.wikipedia.org/wiki/Jalil_Zandi