| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Knocknaboley | city | Wicklow | Ireland | 52.85 | -6.53 | 830 | 1823 |
| Knocknaboley | city | Mayo | Ireland | 53.85 | -9.55 | 72 | 4998 |
| Knocknabolry | city | Clare | Ireland | 52.81 | -9.29 | 830 | 908 |
| Knocknabooly | city | Ireland | 52.58 | -9.16 | 370 | 1771 | |
| Knocknaboul Cross | city | Kerry | Ireland | 52.18 | -9.28 | 839 | 1360 |
| Knocknabro | city | Kerry | Ireland | 52.00 | -9.22 | 994 | 689 |
| Knocknabrogue | city | Ireland | 52.80 | -8.02 | 830 | 1255 | |
| Knocknabrona | city | Ireland | 52.24 | -8.08 | 941 | 1260 | |
| Knocknacaheragh | city | Cork | Ireland | 52.06 | -8.49 | 830 | 1225 |
| Knocknacarry | city | Causeway Coast and Glens | United Kingdom | 55.12 | -6.05 | 255 | 1279 |
| Knocknacolan | city | Cork | Ireland | 52.19 | -8.88 | 830 | 2956 |
| Knocknacree Cross Roads | city | Kildare | Ireland | 52.88 | -6.82 | 830 | 2370 |
| Knocknacrohy | city | Ireland | 52.28 | -7.39 | 291 | 1963 | |
| Knocknacross | city | Sligo | Ireland | 54.11 | -8.36 | 249 | 1286 |
| Knocknadaula | city | Galway | Ireland | 53.26 | -8.60 | 216 | 1436 |
| Knocknafaska | city | Galway | Ireland | 53.28 | -9.53 | 91 | 1874 |
| Knocknafreaghaun | city | Kerry | Ireland | 52.03 | -9.71 | 830 | 828 |
| Knocknagappagh | city | Cork | Ireland | 52.00 | -7.98 | 344 | 1456 |
| Knocknagapple | city | Cork | Ireland | 52.08 | -8.16 | 190 | 1199 |
| Knocknagappul | city | Cork | Ireland | 51.99 | -8.94 | 931 | 754 |
| Knocknagashel | city | Kerry | Ireland | 52.33 | -9.38 | 830 | 1413 |
| Knocknagat Cross Roads | city | Ireland | 52.16 | -7.31 | 246 | 1556 | |
| Knocknagee Cross Roads | city | Kildare | Ireland | 52.87 | -6.89 | 252 | 14885 |
| Knocknageragh Bridge | city | Ireland | 52.80 | -7.80 | 830 | 3395 | |
| Knocknagilky | city | Wicklow | Ireland | 52.89 | -6.49 | 853 | 1058 |
| Knocknagornagh | city | Ireland | 52.49 | -9.28 | 406 | 1644 | |
| Knocknagower | city | Clare | Ireland | 52.88 | -8.52 | 830 | 1668 |
| Knocknagreana | city | Galway | Ireland | 53.25 | -9.19 | 49 | 4027 |
| Knocknagree | city | Ireland | 52.12 | -9.22 | 830 | 2085 | |
| Knocknahaha | city | Kerry | Ireland | 52.31 | -9.74 | 249 | 11255 |
| Knocknaharan | city | Kerry | Ireland | 52.15 | -9.42 | 830 | 1937 |
| Knocknahatlin | city | Meath | Ireland | 53.62 | -6.95 | 308 | 3234 |
| Knocknahila | city | Clare | Ireland | 52.77 | -9.38 | 262 | 1403 |
| Knocknahila Bridge | city | Clare | Ireland | 52.78 | -9.40 | 203 | 1831 |
| Knocknahilan | city | Cork | Ireland | 51.84 | -8.74 | 291 | 2832 |
| Knocknahoola | city | Ireland | 52.05 | -7.70 | 830 | 1295 | |
| Knocknahoran | city | Kerry | Ireland | 52.15 | -10.28 | 213 | 2924 |
| Knocknahorna | city | Mayo | Ireland | 54.09 | -9.48 | 226 | 387 |
| Knocknahur | city | Sligo | Ireland | 54.24 | -8.54 | 127 | 9090 |
| Knocknakilla | city | Cork | Ireland | 52.02 | -9.02 | 997 | 1719 |
| Knocknalee | city | Galway | Ireland | 53.29 | -9.42 | 298 | 1279 |
| Knocknalina | city | Mayo | Ireland | 54.25 | -9.90 | 0 | 950 |
| Knocknaloman | city | Cork | Ireland | 52.07 | -9.20 | 830 | 1444 |
| Knocknalour Cross Roads | city | Wexford | Ireland | 52.67 | -6.54 | 830 | 1799 |
| Knocknalower | city | Mayo | Ireland | 54.24 | -9.82 | 308 | 960 |
| Knocknaman | city | Kerry | Ireland | 52.12 | -9.67 | 134 | 1961 |
| Knocknamanagh | city | Cork | Ireland | 51.75 | -8.38 | 246 | 3462 |
| Knocknamoghalaun | city | Mayo | Ireland | 53.80 | -9.08 | 387 | 1665 |
| Knocknamona | city | Lu | Ireland | 54.04 | -6.24 | 830 | 2845 |
| Knocknamuck | city | Cork | Ireland | 52.27 | -8.23 | 830 | 3981 |
| Knocknamuck | city | Kilkenny | Ireland | 52.70 | -7.46 | 830 | 1435 |
| Knocknamuck | city | Wicklow | Ireland | 52.99 | -6.78 | 830 | 1875 |
| Knocknamucklagh | city | Cork | Ireland | 52.18 | -9.13 | 830 | 1654 |
| Knocknamucky | city | Clare | Ireland | 52.91 | -8.91 | 291 | 1885 |
| Knocknamullagh | city | Cork | Ireland | 51.86 | -8.38 | 295 | 35501 |
| Knocknanagh | city | Cork | Ireland | 52.20 | -9.14 | 875 | 1455 |
| Knocknanask | city | Ireland | 52.21 | -7.84 | 1135 | 1423 | |
| Knocknaree | city | Ireland | 52.29 | -7.63 | 1010 | 788 | |
| Knocknascrow | city | Ireland | 52.33 | -8.24 | 1669 | 1724 | |
| Knocknashamroge | city | Wicklow | Ireland | 52.88 | -6.49 | 830 | 1186 |
| Knocknasilloge | city | Wexford | Ireland | 52.46 | -6.32 | 6 | 1386 |
| Knocknaskagh | city | Cork | Ireland | 51.93 | -8.04 | 157 | 2442 |
| Knocknaskagh Cross Roads | city | Ireland | 52.10 | -7.78 | 249 | 1425 | |
| Knocknasulog | city | Kerry | Ireland | 51.77 | -10.08 | 72 | 498 |
| Knocknatinnyweel | city | Mayo | Ireland | 53.88 | -9.53 | 82 | 1656 |
| Knocknaud | city | Cork | Ireland | 51.64 | -9.95 | 59 | 1321 |
| Knocknaveagh | city | Mayo | Ireland | 53.79 | -9.21 | 154 | 1601 |
| Knocknew | city | Kilkenny | Ireland | 52.71 | -7.23 | 344 | 7570 |
| Knocknorha | city | Ireland | 52.56 | -9.13 | 387 | 2104 | |
| Knocknovey | city | Wexford | Ireland | 52.46 | -6.44 | 167 | 2070 |