Austrian Air Force: On loan from Switzerland all aircraft returned and replaced by Eurofighter Typhoons.
Bahrain Air Force received eight F-5Es and two F-5Fs in between 1985 and 1987.
Botswana Air Force purchased 10 upgraded CF-5As and 3 CF-5Ds from Canada in 1996. A further two CF-5Ds were purchased in 2000.
Brazilian Air Force operates 51 F-5EM and six F-5FM as of 2011; to be withdrawn gradually between 2017 and 2030.
Canadian Forces see Canadair CF-5
Chilean Air Force: Chile purchased 15 F-5Es and 3 F-5Fs in the 1970s, these being upgraded to Tiger III standard from 1993. 16 F-5Es were replaced in 2009 by 16 F-16 Fighting Falcon MLU T5. A total of 10 F-5s remain operational as of 2009. In March 2013, the Uruguayan Air Force initiated talks for procuring 12 surplus F-5 Tiger III aircraft from Chile for $80 million.
Ethiopian Air Force first delivery in 1966; it has operated the A, B and E variants.
Hellenic Air Force received the first 55 F-5As in 1965. In 1975, 10 aircraft were bought from Iran and later, another 10 followed from Jordan. In 1986, nine aircraft were granted from Norway and in 1991, 10 NF-5As were granted by the Netherlands. During 1967 and 1968 this type of aircraft was used by the 3rd Hellenic Aerobatic Team "New Hellenic Flame". The last NF-5As were retired in 2002.
Honduran Air Force The United States delivered 10 F-5E and 2 F-5Fs starting in 1987 as replacements of Dassault Super Mystre, which were reassigned to air strike as they were in their last years of service. The F-5 were refurbished former United States Air Force aircraft.
Indonesian Air Force (TNI-AU or Tentara Nasional Indonesia Angkatan Udara): Upgraded in Belgium in the middle to late 1990s. All 16 F-5E/Fs have been retired since late 2005 but are in reserve in case of future use.
Islamic Republic of Iran Air Force: 60 to 75 F-5E and F operational; 140 originally delivered to the Imperial Iranian Air Force.
Unknown numbers of HESA Saeqeh and HESA Azarakhsh fighters derived from the F-5 design.
Royal Jordanian Air Force retired 2015. Replaced by F-16A/B and Hawk Mk 63.
Kenya Air Force: In July 2008, it was reported that Kenya will spend 1.5 billion KSh to buy 15 former Jordanian Air Force F-5s, 13 F-5E and two F-5F upgraded with Rockwell Collins avionics (plus training and spare parts). They will be added or eventually replace the current F-5 fleet
Republic of Korea Air Force: Received a total of 340 F-5s (88 F-5A, 30 F-5B, 8 RF-5A, 126 F-5E, 20 F-5F, 48 KF-5E, and 20 KF-5F). During the Vietnam War, 36 F-5As and 8 RF-5As were transferred to the Vietnam Air Force in exchange of F-4 Phantom II from the United States Air Force. 5 RF-5As were brought back to Korea before the war ended. The last Freedom Fighter retired in 2005, and 8 F-5As were donated to the Philippines Air Force. The ROKAF plans to replace the U.S. made F-5E/Fs with 60 newly built FA-50 aircraft.
Royal Libyan Air Force to 1969. 10 F-5s. May have been sold to Turkey after 1969.
Mexican Air Force received 12 F-5s in 1982. The service currently operates eight F-5Es and two F-5Fs.
Royal Moroccan Air Force operates 12 F-5A/Bs upgraded with Tiger II avionics and 24 upgraded F-5 Tiger III.
Royal Malaysian Air Force uses 4 F-5F as trainer aircraft while another 16 of its Northrop F-5E Tiger IIs were upgraded for reconnaissance purposes.
Royal Netherlands Air Force (former operator), received 75 [Canadair built] NF-5A (Single-seat fighter version) and 30 NF-5B (Two-seat training version) between 7 October 1969 and 20 March 1972. After the aircraft were phased out and replaced by the modern F-16 Fighting Falcon, the aircraft were initially stored at Gilze-Rijen Air Base and Woensdrecht Air Base, until finally 60 aircraft were sold to Turkey, 11 to Greece and 7 to Venezuela. Several of the remaining aircraft can be found in aviation museums and technical schools.
No. 313 Squadron; Twente Air Base (transitioned to F-16 in 1987)
No. 314 Squadron; Eindhoven Air Base (transitioned to F-16 in 1990)
No. 315 Squadron, Operation Conversion Unit (OCU); Twente Air Base (transitioned to F-16 in 1986)
No. 316 Squadron; Gilze-Rijen Air Base (transitioned to F-16 in 1991)
Field Technic Training Unit NF-5 (19711984); Twente Air Base
Royal Norwegian Air Force (former operator)
Philippine Air Force received 19 F-5A (single seat) and three F-5B (two seat) aircraft in 19651967. In 1989, the PAF received three ex-Taiwanese F-5A and one F-5B. In the 1990s, at least eight ex-South Korean F-5A and two Jordanian F-5A were acquired. The Philippines decommissioned its F-5A/B fleet in 2005.
Royal Saudi Air Force: 110 F-5E/Fs withdrawn from active service aside from in the trainer role, some squadrons such as #10 based in Taif will be replaced with Eurofighter Typhoon.
Republic of Singapore Air Force: operates 32 F-5S, 9 F-5T and 8 RF-5S fighters.
Vietnam Air Force received a fleet of 158 former U.S., South Korean, Iranian, and Chinese F-5A Freedom Fighters, 10 RF-5A and eight F-5B trainers, USA also provided newer F-5E Tiger IIs, most of F-5s were evacuated to Thailand in 1975, but many were captured by People's Army.
Spanish Air Force, operates 19 F-5Bs as trainers for fighter school.
Sudanese Air Force: 10 F-5Es and two F-5F were delivered in 1978, One of the F-5Fs was sold to Jordan. further two F-5s defected to Sudan from Ethiopia during the Ogaden crisis.
Swiss Air Force: Operating 42 F-5E and 12 F-5F Tiger II. The Swiss chose the F-5 because it was simpler to maintain than the F-16.
Taiwan (Republic of China)
Republic of China Air Force: Received 115 F-5A and B from 1965, 48 were transferred to South Vietnam before 1975. From 1973 to 1986, Taiwan produced 308 F-5E/Fs under license. Later batches of locally AIDC licensed production of Tiger IIs were fitted with flare/chaff dispensers, plus handling qualities upgrades with enlarged LEX and F-20's shark nose, and radar warning receivers(RWR).
Royal Thai Air Force: 30 F-5A/B/C retired. Now operating F-5E/F/T about 40, F-5s from 701st Sq. retired and replaced by 12-JAS 39 Gripen. The last F-5 fleet, upgraded F-5T Tigris and F-5F in 211st Sq. will continue to serve to 20252030.
Tunisian Air Force: Eight F-5E and four F-5F Tiger II were delivered in 19841985. The TAF received five ex-USAF F-5E in 1989. A total of 16 aircraft still in service.
Turkish Air Force: More than 200 F-5A/Bs and NF-5A/Bs were bought from various countries. Between 40 and 50 of them were upgraded to F-5/2000 standard during the 2000s (decade). The F-5/2000 remains active of which 10 F-5A and two F-5Bs belong to the Turkish Stars aerobatic display team.
F-5Es were received from Vietnam and the Derg regime in Ethiopia for performance tests and evaluation flights. They were tested in mock combat against MiG-21 and MiG-23 aircraft, ultimately aiding in the development of the MiG-23MLD and the MiG-29.
United States Air Force
64th Aggressor Squadron (19761988)
65th Aggressor Squadron (19751989)
United States Navy
United States Marine Corps
Venezuelan Air Force
Vietnam People's Air Force (several captured ex-VNAF aircraft). One F-5E (s/n 73-00867) was transferred to the Soviet Union for evaluation flights, i.e. against the MiG-21bis; 40+ F-5E/F/C were in VNAF's service. After the Vietnam War, Vietnamese forces used the captured F-5 fleet against Chinese forces during Sino-Vietnamese War.
Yemen Air Force: North Yemen Air Force's 14 F-5E/F fleet were initially piloted by ROCAF/Taiwan pilots as part of 115th Squadron at Sanaa, from April 1979 to May 1990, to boost its air defense.