- Sitta azurea (Blue Nuthatch)
- Sitta azurea azurea
- Sitta canadensis (Red-breasted Nuthatch)
- Sitta carolinensis (White-breasted Nuthatch)
- Sitta carolinensis [aculeata Group] (White-breasted Nuthatch (Pacific))
- Sitta carolinensis [mexicana Group] (White-breasted Nuthatch (Interior West))
- Sitta carolinensis aculeata
- Sitta carolinensis alexandrae
- Sitta carolinensis carolinensis (White-breasted Nuthatch (Eastern))
- Sitta carolinensis kinneari
- Sitta carolinensis lagunae
- Sitta carolinensis mexicana
- Sitta carolinensis nelsoni
- Sitta carolinensis oberholseri
- Sitta carolinensis tenuissima
- Sitta cashmirensis (Kashmir Nuthatch)
- Sitta castanea (Chestnut-bellied Nuthatch)
- Sitta castanea almorae
- Sitta castanea castanea
- Sitta castanea cinnamoventris
- Sitta castanea neglecta
- Sitta castanea tonkinensis
- Sitta europaea (Eurasian Nuthatch)
- Sitta europaea albifrons
- Sitta europaea amurensis
- Sitta europaea arctica
- Sitta europaea asiatica
- Sitta europaea atlas
- Sitta europaea bedfordi
- Sitta europaea caesia
- Sitta europaea caucasica
- Sitta europaea cisalpina
- Sitta europaea europaea
- Sitta europaea hispaniensis
- Sitta europaea levantina
- Sitta europaea nebulosa
- Sitta europaea persica
- Sitta europaea rubiginosa
- Sitta europaea sakhalinensis
- Sitta europaea sinensis
- Sitta formosa (Beautiful Nuthatch)
- Sitta frontalis (Velvet-fronted Nuthatch)
- Sitta frontalis frontalis
- Sitta frontalis palawana
- Sitta frontalis saturatior
- Sitta frontalis velata
- Sitta himalayensis (White-tailed Nuthatch)
- Sitta krueperi (Krueper’s Nuthatch)
- Sitta ledanti (Algerian Nuthatch)
- Sitta leucopsis (White-cheeked Nuthatch)
- Sitta leucopsis leucopsis
- Sitta leucopsis przewalskii
- Sitta magna (Giant Nuthatch)
- Sitta magna magna
- Sitta nagaensis (Chestnut-vented Nuthatch)
- Sitta nagaensis nagaensis (montium)
- Sitta neumayer (Rock Nuthatch)
- Sitta neumayer neumayer
- Sitta neumayer plumbea
- Sitta neumayer rupicola
- Sitta neumayer syriaca
- Sitta oenochlamys (Sulphur-billed Nuthatch)
- Sitta oenochlamys apo
- Sitta oenochlamys isarog
- Sitta oenochlamys mesoleuca
- Sitta oenochlamys oenochlamys
- Sitta oenochlamys zamboanga
- Sitta pusilla (Brown-headed Nuthatch)
- Sitta pusilla insularis (Brown-headed Nuthatch (Grand Bahama))
- Sitta pusilla pusilla (Brown-headed Nuthatch (Southeast))
- Sitta pygmaea (Pygmy Nuthatch)
- Sitta pygmaea brunnescens
- Sitta pygmaea flavinucha
- Sitta pygmaea leuconucha
- Sitta pygmaea melanotis
- Sitta pygmaea pygmaea
- Sitta solangiae (Yellow-billed Nuthatch)
- Sitta solangiae solangiae
- Sitta tephronota (Persian Nuthatch)
- Sitta tephronota dresseri
- Sitta tephronota obscura
- Sitta tephronota tephronota
- Sitta victoriae (White-browed Nuthatch)
- Sitta villosa (Snowy-browed Nuthatch)
- Sitta villosa bangsi
- Sitta villosa villosa
- Sitta whiteheadi (Corsican Nuthatch)
- Sitta yunnanensis (Yunnan Nuthatch)