| Porturlin | |
| Native Name: | Irish: Port Durlainne |
| Native Name Lang: | ga |
| Settlement Type: | Village |
| Pushpin Map: | Ireland |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Ireland |
| Subdivision Type: | Country |
| Subdivision Name: | Ireland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Connacht |
| Subdivision Type3: | County |
| Subdivision Name3: | County Mayo |
| Unit Pref: | Metric |
| Area Total Km2: | 9.152 |
| Population As Of: | 2011 |
| Population Total: | 59 |
| Population Density Km2: | auto |
| Timezone1: | WET |
| Utc Offset1: | +0 |
| Timezone1 Dst: | IST (WEST) |
| Utc Offset1 Dst: | -1 |
| Coordinates: | 54.3161°N -9.7149°W |
| Elevation M: | 33 |
| Blank Name: | Irish Grid Reference |
| Footnotes: | As this is a Gaeltacht village Port Durlainne is the only official name. The anglicised spelling Porturlin has no official status. |
| Elevation Max Point: | Porturlin Hill |
| Elevation Max M: | 155 |
Porturlin (Irish: Port Durlainne)[1] is a Gaeltacht village and townland on the northwest coast of County Mayo, Ireland. It is situated in the barony of Erris and parish of Kilcommon. Porturlin townland has an area of approximately 2261.5 acres (9.1 km2)[2] and, as of 2011, had a population of 59 people.[3]
Following the Irish Rebellion of 1798 watch towers and defence structures were built along the northern coast.[4] A road was constructed to the area in the 1840s.
In 1894, the Congested Districts Board set up a processing facility for herring and mackerel in Porturlin, they also operated a lace school in the area.[5]
After several iterations, in 1965, Mayo County Council started to construct a fishing pier for use by a greater number of vessels.
Richard Webb, present during the famine years to assess the situation for the Society of Friends, noted that the prime fishing area in Mayo was located off Porturlin, but described the area as almost inaccessible by land.