30 Dragonfly and Damselfly species occur in Ireland with an additional 3 species known only from historical records. There are 14 resident dragonfly species, 11 resident damselfly species and 5 vagrant species.
Dragonflies
| Common name | Species name |
| Golden-ringed Dragonfly | Cordulegaster boltonii |
| Hairy Dragonfly | Brachytron pratense |
| Common Hawker | Aeshna juncea |
| Brown Hawker | Aeshna grandis |
| Migrant Hawker | Aeshna mixta |
| Emperor Dragonfly | Anax imperator |
| Downy Emerald | Cordulia aenea |
| Northern Emerald | Somatochlora arctica |
| Four-spotted Chaser | Libellula quadrimaculata |
| Keeled Skimmer | Orthetrum coerulescens |
| Black-tailed Skimmer | Orthetrum cancellatum |
| Common Darter | Sympetrum striolatum |
| Ruddy Darter | Sympetrum sanguineum |
| Black Darter | Sympetrum danae |
Damselflies
| Common name | Species name |
| Beautiful Demoiselle | Calopteryx virgo |
| Banded Demoiselle | Calopteryx splendens |
| Emerald Damselfly | Lestes sponsa |
| Scarce Emerald Damselfly | Lestes dryas |
| Large Red Damselfly | Pyrrhosoma nymphula |
| Blue-tailed Damselfly | Ischnura elegans |
| Scarce Blue-tailed Damselfly | Ischnura pumilio |
| Common Blue Damselfly | Enallagma cyathigerum |
| Variable Damselfly | Coenagrion pulchellum |
| Azure Damselfly | Coenagrion puella |
| Irish Damselfly | Coenagrion lunulatum |
Vagrant Dragonflies
| Common name | Species name |
| Lesser Emperor | Anax parthenope |
| Vagrant Emperor | Hemianax ephippiger |
| Southern Hawker | Aeshna cyanea |
| Red-veined Darter | Sympetrum fonscolombii |
| Yellow-winged Darter | Sympetrum flaveolum |
Historical Dragonfly Records
| Common name | Species name |
| Club-tailed Dragonfly | Gomphus vulgatissimus |
| Broad-bodied Chaser | Libellula depressa |
| Scarce Chaser | Libellula fulva |