| Barr Water | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Scotland |
| Subdivision Type2: | Region |
| Subdivision Name2: | Argyll and Bute |
| Subdivision Type3: | Peninsula |
| Subdivision Name3: | Kintyre |
| Source1 Coordinates: | 55.6028°N -5.5892°W |
| Mouth Location: | Glenbarr |
| Mouth Coordinates: | 55.5592°N -5.7106°W |
Barr Water is a westerly flowing river on the Kintyre peninsula in Argyll and Bute, west of Scotland. Rising at the diminutive Loch Losgainn near the hill of Cruach Mhic-an t-Saoir, it initially flows south-southwestwards amongst conifer plantations before turning west-southwestwards to flow down Barr Glen to reach the sea at Glenbarr.[1]