In the present study, the fatigue crack propagation in 5052 Al alloy processed through different cryogenic rolling methods has been investigated in detail. The solution-treated 5052 Al alloy was subjected to different cryogenic rolling methods such as cryorolling (CR), cryo groove rolling (CGR) and cryo groove rolling followed by warm rolling (CGW). The CR, CGR and CGW processed samples exhibit threshold stress intensity value (ΔKth) of 4.88, 6.5 and 5.5 MPa m1/2, whereas ST sample possesses ΔKth of 3.75 MPa m1/2. The formation of UFG grains of size 125–200 nm as observed through the TEM images along with improved elastic strength of the cryo deformed samples are responsible for the improvement of ΔKth. © 2022, ASM International.