In this study, we report the plasma levels of 5 antimicrobial peptides (LL‐37, α‐defensin 1, α‐defensin 3, β‐defensin 1, and β‐defensin 3) in 15 healthy subjects, 36 COVID‐19 patients without AKI and 17 COVID‐19 patients with AKI. Here, CAMP is linked to acute kidney injury.