
The Iberian chiffchaff is a species of leaf warbler endemic to Portugal, Spain and North Africa, west of a line stretching roughly from the western Pyrenees via the mountains of central Spain to the Atlantic.

The mountain chiffchaff or eastern chiffchaff is a species of leaf warbler found in the Caucasus and Himalayas, and is an altitudinal migrant, moving to lower levels in winter. The nominate subspecies is similar to the Siberian chiffchaff, but with a finer darker bill, browner upperparts and buff flanks; its song is almost identical to the common chiffchaff, but the call is a weak psew. P. s. lorenzii is warmer and darker brown than the nominate race; it is sympatric with common chiffchaff in a small area in the Western Caucasus, but interbreeding occurs rarely, if ever. The mountain chiffchaff differs from tristis in vocalisations, external morphology and mtDNA sequences. Its two subspecies appear to be distinct vocally, and also show some difference in mtDNA sequences.

The Lompobattang leaf warbler is a species of Old World warbler in the family Phylloscopidae. It is found only in Sulawesi Island, Indonesia. The Sulawesi leaf warbler was formerly considered conspecific with the Lompobattang leaf warbler and both were grouped under the name P. sarasinorum, but more recent analyses indicate that it is a distinct species.

Seicercus is a genus of Old World warbler formerly in the family Sylviidae but now placed in Phylloscopidae. Recent scientific studies have recommended synonymizing this genus with Phylloscopus, and are placed there.

The Sulawesi leaf warbler is a species of Old World warbler in the family Phylloscopidae. It is found only in Sulawesi Island, Indonesia. The Sulawesi leaf warbler was formerly considered conspecific with the Lompobattang leaf warbler and both were grouped under the name P. sarasinorum, but more recent analyses indicate that it is a distinct species.

The ashy-throated warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

The buff-barred warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

The buff-throated warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

The chestnut-crowned warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

The western crowned warbler is a leaf warbler which breeds in Central Asia. It winters in the forests of the Western Ghats.

The dusky warbler is a leaf warbler which breeds in the east Palearctic. The genus name Phylloscopus is from Ancient Greek phullon, "leaf", and skopos, "seeker". The specific fuscatus is from Latin fuscus "dark".

The green warbler, also known as green willow warbler or green leaf warbler, is a leaf warbler found in the Caucasus Mountains in southcentral Europe.

The green-crowned warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

The grey-cheeked warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

The grey-crowned warbler is a species of Old World warbler in the family Phylloscopidae. It is found in Bangladesh, China, India, Laos, Myanmar, Thailand and Vietnam. Its natural habitats are temperate forests, subtropical or tropical moist lowland forest, and subtropical or tropical moist montane forest.

The grey-hooded warbler is a species of leaf warbler. It is most famous for the way it warbles. It was formerly included in the "Old World warbler" assemblage.

Blyth's leaf warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

Brooks's leaf warbler is a species of Old World warbler in the family Phylloscopidae.

Claudia's leaf warbler is a leaf warbler found only in China. Its natural habitat is temperate forests. Most taxonomists previously considered it to be a subspecies of the Blyth's leaf warbler.

The island leaf warbler is a species of Old World warbler in the family Phylloscopidae. It is found in an area ranging from the Moluccas to the Solomon Islands. It has 16 subspecies.

The Japanese leaf warbler is a leaf warbler. The species was first described by Robert Swinhoe in 1863. It was formerly included in the "Old World warbler" assemblage. It is closely related to the Arctic warbler and the Kamchatka leaf warbler, to which it was formerly considered conspecific.

Kloss's leaf warbler is a leaf warbler found in Cambodia, China, Laos, Thailand, and Vietnam. Its natural habitats are temperate forests, subtropical or tropical moist lowland forests, and subtropical or tropical moist montane forests.

The large-billed leaf warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

The mountain leaf warbler is a songbird species from the leaf warbler family (Phylloscopidae). It was formerly included in the "Old World warbler" assemblage.

The Negros leaf warbler is a songbird species from the leaf warbler family (Phylloscopidae). It was formerly included in the "Old World warbler" assemblage.

The pale-legged leaf warbler is a species of Old World warbler in the family Phylloscopidae. The species was first described by Robert Swinhoe in 1860. It is found in Manchuria; it winters in Southeast Asia. Its natural habitat is temperate forests.

The Philippine leaf warbler is a species of Old World warbler in the family Phylloscopidae. It is found in the southern half of the Philippines.
The plain leaf warbler is a species of Old World warbler in the family Phylloscopidae. It is found in Afghanistan, Bahrain, India, Iran, Oman, Pakistan, Russia, Tajikistan, Turkmenistan, United Arab Emirates, and Uzbekistan.

The Sakhalin leaf warbler is a species of Old World warbler in the family Phylloscopidae. It is found in Sakhalin, the Kuril Islands and Japan; it winters to the Amami and Okinawa islands.
Tickell's leaf warbler is a leaf warbler found in Asia in the countries of Bangladesh, Bhutan, China, India, Myanmar, Nepal, Pakistan and Thailand. The species has a yellowish underside and super-cilium. Like other leaf warblers it feeds mostly on insects by gleaning and short sallies. An active bird, it prefers the canopy and low shrubbery and can be difficult to track as it moves actively from branch to branch, acrobatically exploring the underside of leaves and twigs. The clear yellowish undersides and lack of a wing bar can be used to tell it apart from similar species. It has slim dark legs with largely pale lower mandible and grayish wing panel.

The Timor leaf warbler is a species of Old World warbler in the family Phylloscopidae. It is found on Timor island. Its closest relative is the Rote leaf warbler.

The lemon-rumped warbler or pale-rumped warbler is a species of Old World warbler in the family Phylloscopidae. It is found from the western Himalayas to central China.

The smoky warbler is a species of Old World warbler in the family Phylloscopidae. It is found in the eastern Himalayas, the Tibetan Plateau, and as an occasional vagrant to Myanmar.

The sulphur-bellied warbler is a species of leaf-warbler found in the Palearctic region They were earlier also known by the name of olivaceous leaf-warbler.

The sulphur-breasted warbler is a species of Old World warbler in the family Phylloscopidae. It breeds in China; it winters to Laos, Thailand and Cambodia. Its natural habitats are temperate forests and subtropical or tropical moist lowland forests.

The Sunda warbler is a species of Old World warbler in the family Phylloscopidae. It is found only in Indonesia.

The two-barred warbler is a bird of the leaf warbler family (Phylloscopidae). The species was first described by Robert Swinhoe in 1861. It was formerly included in the "Old World warbler" assemblage. It is closely related to the greenish warbler, to which it was formerly considered conspecific.

Whistler's warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.

The white-spectacled warbler is a species of leaf warbler in the. It is found in Asia from the eastern Himalayas to south-eastern China and southern Vietnam. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. It was formerly included in the Old World warbler family, Sylviidae.

The brown woodland warbler is a species of Old World warbler in the family Phylloscopidae.

The yellow-throated woodland warbler is a species of Old World warbler. It is found in Kenya, Malawi, Mozambique, South Africa, Swaziland, Tanzania, Zambia, and Zimbabwe. Its natural habitats are subtropical or tropical dry forest and subtropical or tropical moist lowland forest.

The yellow-breasted warbler is a species of Old World warbler in the family Phylloscopidae. It is found in Indonesia, Malaysia, and Palawan Island in the Philippines. The species is most common on the islands of Sumatra and Borneo in Indonesia. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical moist montane forest.

The yellow-streaked warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.
The yellow-vented warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage.