This is a list of species in the plant genus Viola, often known as violets.
(Note: Neither Saintpaulia ("African violets") nor Erythronium dens-canis ("Dogtooth violets") are related to the true violets.)
- Viola acuminata - Acuminate Violet
- Viola adunca - Hookedspur Violet, Western Dog Violet
- Viola aetolica
- Viola affinis - Sand Violet
- Viola alba - White Violet
- Viola allchariensis
- Viola alpina
- Viola altaica
- Viola appalachiensis - Appalachian Violet
- Viola arborescens
- Viola arsenica
- Viola arvensis - Field Pansy
- Viola bakeri - Baker's Violet
- Viola banksii - Banks' Violet
- Viola beckwithii - Beckwith's Violet, Great Basin Violet
- Viola bertolonii
- Viola betonicifolia
- Viola bicolor - Field Pansy
- Viola biflora - Yellow Wood Violet, Twoflower Violet
- Viola blanda - Sweet White Violet, Willdenow's Violet
- Viola brevistipulata - Short Stipule Violet
- Viola brittoniana - Northern Coastal Violet, Coast Violet
- Viola calaminaria - Yellow Calamine Violet
- Viola calcarata
- Viola californica - California Violet
- Viola canadensis - Canadian White Violet, Canada Violet
- Viola canina - Heath Dog Violet
- Viola cazorlensis
- Viola cenisia
- Viola chaerophylloides
- Viola chamissoniana - Olopu
- Viola charlestonensis - Charleston Mountain Violet
- Viola chinensis - China Violet
- Viola collina - Hill Violet
- Viola comollia
- Viola conspersa - American Dog Violet
- Viola cornuta - Horned Pansy, Horned Violet, Johnny-Jump-Up
- Viola corsica
- Viola crassa
- Viola cryana - Cry Violet
- Viola cucullata - Marsh Blue Violet
- Viola cuneata - Wedgeleaf Violet
- Viola cunninghamii
- Viola declinata
- Viola delphinantha
- Viola diffusa - Spreading Violet
- Viola dissecta
- Viola douglasii - Douglas' Golden Violet
- Viola dubyana
- Viola egglestonii - Glade Violet
- Viola elatior
- Viola elegantula
- Viola epipsila - Dwarf Marsh Violet, Large Marsh Violet
- Viola eugeniae
- Viola fimbriatula - Fringed Violet
- Viola flettii - Olympic Violet, Rock Violet
- Viola frank-smithii - Frank-Smith's Violet
- Viola glabella - Pioneer Violet, Stream Violet
- Viola gracilis
- Viola grisebachiana
- Viola grypoceras
- Viola guadalupensis - Guadalupe Violet
- Viola guestphalica - Calamine Violet
- Viola hallii - Oregon Violet
- Viola hastata - Halberd-leaf Yellow Violet
- Viola hederacea - Australian Violet, Trailing Violet
- Viola helenae - Wahiawa Stream Violet
- Viola hirsutula - Southern Woodland Violet
- Viola hirta - Hairy Violet
- Viola hispida - Rouen Pansy
- Viola howellii - Howell's Violet
- Viola incognita - Large-leaved White Violet
- Viola japonica - Japanese Violet
- Viola jooi
- Viola kauaensis - Pohe Hiwa
- Viola keiskei
- Viola kitaibeliana - Dwarf Pansy
- Viola kosaninii
- Viola labradorica - Alpine Violet, Labrador Violet
- Viola lactea - Pale Dog Violet
- Viola lanaiensis - Hawaii Violet
- Viola lanceolata - Bog White Violet
- Viola langsdorfii - Aleutian Violet, Alaska Violet
- Viola lithion - Rock Violet
- Viola lobata - Moosehorn Violet, Yellow Wood Violet
- Viola lovelliana - Lovell's Violet
- Viola lutea - Mountain Pansy
- Viola macloskeyi - Small White Violet, Western Sweet White Violet
- Viola mandshurica - Fuji Dawn
- Viola maviensis - Hawaii Bog Violet
- Viola mirabilis - Wonder Violet
- Viola missouriensis - Missouri Violet, Banded Violet
- Viola munbyana
- Viola nephrophylla - Northern Bog Violet
- Viola novae-angliae - New England Blue Violet
- Viola nuttallii - Nuttall's Violet, Yellow Prairie Violet
- Viola oahuensis - Oahu Violet
- Viola obliqua - Marsh Blue Violet
- Viola obtusa - Blunt Violet
- Viola ocellata - Pinto Violet, Two-eyed Violet
- Viola odorata - Sweet Violet
- Viola orbiculata - Darkwoods Violet, Western Round-leaved Violet
- Viola orientalis
- Viola orphanidis
- Viola palmata - Early Blue Violet, Palmate Violet
- Viola palustris - Marsh Violet, Alpine Marsh Violet
- Viola patrinii - Stemless Violet
- Viola pedata - Bird's-foot Violet, Birdfoot Violet, Crow Foot Violet
- Viola pedatifida - Prairie Violet, Prairie Birdfoot Violet
- Viola pedunculata - California Golden Violet, Grass Pansy, Yellow Pansy
- Viola persicifolia - Fen Violet (syn. V. stagnina)
- Viola pinetorum - Goosefoot Violet
- Viola pinnata - Pinnate Violet
- Viola praemorsa - Canary Violet
- Viola primulifolia - Primrose leaved Violet
- Viola prionantha
- Viola psychodes - Butterfly Violet
- Viola pubescens - Downy Yellow Violet
- Viola pumila - Meadow Violet
- Viola purpurea - Goosefoot Violet
- Viola rafinesquii - Field Pansy
- Viola reichanbachiana - Early Dog Violet, Slender Wood Violet
- Viola reichei - Reiche Violet, Patagonian Yellow Violet, Chilean Yellow Violet
- Viola renifolia - Northern White Violet, Kidney-leaved White Violet
- Viola riviniana - Common Dog Violet
- Viola rostrata - Longspur Violet
- Viola rotundifolia - Eastern Roundleaf Yellow Violet, Early Yellow Violet
- Viola rupestris - Teesdale Violet, Rock Violet
- Viola sagittata - Arrowleaf Violet
- Viola selkirkii - Northern Violet,Selkirk's Violet
- Viola sempervirens - Evergreen Violet, Redwood Violet
- Viola septemloba - Southern Coastal Violet
- Viola septentrionalis - Northern Woodland Violet, Northern Blue Violet
- Viola sieberiana
- Viola sheltonii - Shelton's Violet
- Viola sororia - Woolly Blue Violet
- Viola stojanowii
- Viola striata - Striped Cream Violet, Pale Violet, Striped Violet
- Viola suavis - Russian Violet
- Viola subsinuata - Wavy-leaf Violet
- Viola tokubuchiana
- Viola tomentosa - Feltleaf Violet
- Viola tricolor - Wild Pansy, Heart's-ease
- Viola triloba
- Viola trinervata - Rainier Violet, Sagebrush Violet
- Viola tripartita - Threepart Violet
- Viola uliginosa
- Viola umbraticola - Ponderosa Violet
- Viola utahensis - Utah Violet
- Viola vaginata - Sheathed Violet
- Viola valderia
- Viola vallicola - Valley Violet
- Viola variegata
- Viola verecunda - Hidden Violet
- Viola viarum - Twoflower Violet, Plains Violet, Wayside Violet
- Viola villosa - Carolina Violet, Hairy Violet, Wrinkled Violet
- Viola violacea
- Viola wailenalenae - Alakai Swamp Violet
- Viola walteri - Prostrate Blue Violet, Prostrate Southern Violet
- Viola yesoensis
- Selected hybrids
- Viola × bernardii - Bernard's Violet
- Viola × bissellii - Bissell's Violet
- Viola × brauniae - Braun's Violet
- Viola × conjugens
- Viola × consobrina
- Viola × consocia
- Viola × cooperrider
- Viola × cordifolia
- Viola × davisii - Davis' Violet
- Viola × eamesii - Eames' Violet
- Viola × eclipes
- Viola × filicetorum
- Viola × hollickii - Hollick's Violet
- Viola × insolita
- Viola × luciae - Lucy's Violet
- Viola × malteana
- Viola × mistura
- Viola × modesta
- Viola × mollicula
- Viola × mulfordiae - Mulford's Violet
- Viola × notabilis
- Viola × peckiana - Peck's Violet
- Viola × porteriana - Porter's Violet
- Viola × primulifolia
- Viola × ravida
- Viola × redacta
- Viola × ryoniae - Ryon's Violet
- Viola × slavinii - Slavin's Violet
- Viola × wittrockiana - Pansy, Garden Pansy
- Viola × wujekii
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