Chlamydia (disambiguation)

Chlamydia is a sexually transmitted infection caused by the bacterium Chlamydia trachomatis.

Chlamydia may also refer to:
 * Chlamydia (genus), a genus of pathogenic bacteria
 * Chlamydia abortus, a chlamydial species that causes abortion in mammals
 * Chlamydia caviae, a chlamydial species found in Guinea pigs
 * Chlamydia felis, a chlamydial species found in cats
 * Chlamydia muridarum, causing disease in mice and hamsters (the Muridae)
 * Chlamydia pecorum, a chlamydial species common in livestock
 * Chlamydia pneumoniae, also known as Chlamydophila pneumoniae, an airborne chlamydial species responsible for human respiratory infection and numerous animal infections
 * Chlamydia psittaci, causes parrot fever
 * Chlamydia suis, infects pigs (Sus scrofa)
 * Chlamydia trachomatis, causing human sexually transmitted disease and eye infections