| Kingdom of England | |||
| 1689: | Zachariah Tiffin’s Regiment of Foot │ |
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| 1702: | Thomas Whetham’s │ |
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| 1707: | Kingdom of Great Britain | ||
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| 1725: | Richard Molesworth’s │ |
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| 1732: | Archibald Hamilton’s │ |
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| 1737: | William Blakeney’s │ |
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| 1751: | 27th (Enniskillen) Regiment of Foot │ |
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│ │ |
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| │ | Presidency of Madras | ||
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| 1766: | │ │ |
3rd Madras European Regiment │ |
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| 1766: | │ │ │ │ |
absorbed by 1st and 2nd |
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| 1777: | │ │ |
3rd Madras European Regiment │ |
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| 1796: | │ │ │ |
disbanded |
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| 1800: | 2nd Bn raised │ |
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| 1801: | United Kingdom of Great Britain and Ireland |
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| │ | |||
| 1803: | 2nd Bn disbanded │ |
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| 1805: | 2nd Bn and 3rd Bn raised │ |
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| 1816: | 3rd Bn disbanded │ |
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| 1817: | 2nd Bn disbanded │ |
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| 1840: | 27th (Inniskilling) Regiment of Foot │ |
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| 1854: | │ │ |
3rd Madras (European) Infantry │ |
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| 1859: | │ │ |
United Kingdom of Great Britain and Ireland |
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| │ | │ | ||
| 1859: | │ │ |
3rd Madras Infantry │ |
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| 1862: | │ │ │ │ |
transfrered to the British Army 108th Regiment of Foot (Madras Infantry) │ |
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| The creation of the territorial regiments by the Childers reforms | |||
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| 1881: | 1st Bn, | 2nd Bn, | |
| The Royal Inniskilling Fusiliers | |||
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| 1922: | United Kingdom of Great Britain and Northern Ireland | ||
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| 1922: | 2nd Bn disbanded │ |
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| 1926: |  │ |
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| 1934: |  │ |
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| 1937: | 2nd Bn raised │ |
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| 1948: | 2nd Bn disbanded │ |
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| 1948: |
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| 1952: | 2nd Bn raised │ |
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| 1956: | 2nd Bn disbanded │ |
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| 1958: |  │ |
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| 1968: | 1st Battalion, The Royal Irish Rangers (27th (Inniskilling), 83rd and 87th) |
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| 1992: | 1st Battalion, The Royal Irish Regiment (27th (Inniskilling), 83rd and 87th and the Ulster Defence Regiment) |
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| 2023: |  │ |
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