The Kaliningrad K-8 (R-8) (NATO reporting name AA-3 'Anab') was a medium-range air-to-air missile developed by the Soviet Union for interceptor aircraft use.

Like most Soviet air-to-air missiles, it was made with a choice of semi-active radar homing or infrared seeker heads.

[1] Subsequent development led in 1965 to R-8M2, more commonly called R-98, with longer range and improved seekers, compatible with the upgraded RP-11 Oryol-M ("Eagle") radar.

The final variant, introduced from 1973, was the R-98M1 (NATO 'Advanced Anab') with better countermeasures resistance and longer range, matched to the Taifun-M radar of the Su-15TM and Yak-28PM interceptors.

[1] A variant using the seeker heads of the K-13, giving better dogfight capability, was developed in 1960 as the K-88, but it did not enter service.