Bush warblers are small insectivorous birds belonging to the genera Cettia and Bradypterus of the Old World warbler family Sylviidae. There are about 35 species in the genera.

These are mostly dull birds, unmarked brown above, with strong legs and feet and short broad wings. Many are similar in appearance. They are mostly southern Asian, although Cetti's Warbler has a more extensive range, across southern Europe. Southern species are usually resident, and northern are short_distance migrants.

These are quite terrestrial birds, which live in densely vegetated habitats like thick forest and reedbeds. The will walk away from disturbance rather than flush. The plumage similarities and skulking lifestyle makes these birds hard to see and identify.

The species are:

• Manchurian Bush Warbler, Cettia canturians
• Pale-footed Bush Warbler, Cettia pallidipes
• Japanese Bush Warbler, Cettia diphone
• Philippine Bush Warbler, Cettia seebohmi
• Palau Bush Warbler, Cettia annae
• Shade Warbler, Cettia parens
• Fiji Bush Warbler, Cettia ruficapilla
• Tanimbar Bush Warbler, Cettia carolinae
• Brownish-flanked Bush Warbler, Cettia fortipes
• Sunda Bush-Warbler, Cettia vulcania
• Chestnut-crowned Bush Warbler, Cettia major
• Aberrant Bush Warbler, Cettia flavolivacea
• Yellowish-bellied Bush Warbler, Cettia acanthizoides
• Gray-sided Bush Warbler, Cettia brunnifrons
• Cetti's Warbler, Cettia cetti

• African Bush Warbler, Bradypterus baboecala
• Ja River Scrub Warbler, Bradypterus grandis
• White-winged Scrub Warbler, Bradypterus carpalis
• Grauer's Scrub Warbler, Bradypterus graueri
• Bamboo Scrub Warbler, Bradypterus alfredi
• Knysna Scrub Warbler, Bradypterus sylvaticus
• Cameroon Scrub Warbler, Bradypterus lopezi
• African Scrub Warbler, Bradypterus barratti
• Bangwa Scrub Warbler, Bradypterus bangwaensis
• Cinnamon Bracken Warbler, Bradypterus cinnamomeus
• Victorin's Scrub Warbler, Bradypterus victorini
• Spotted Bush Warbler, Bradypterus thoracicus
• Long-billed Bush Warbler, Bradypterus major
• Chinese Bush Warbler, Bradypterus tacsanowskius
• Russet Bush Warbler, Bradypterus seebohmi
• Brown Bush Warbler, Bradypterus luteoventris
• Taiwan Bush Warbler, Bradypterus alishanensis
• Sri Lanka Bush Warbler, Bradypterus palliseri
• Friendly Bush Warbler, Bradypterus accentor
• Long-tailed Bush Warbler, Bradypterus caudatus
• Chestnut-backed Bush Warbler, Bradypterus castaneus