B roads are numbered routes in Great Britain of lesser importance than A roads. See the article Great Britain road numbering scheme for the rationale behind the numbers allocated.
| Road | From | To | Notes |
|---|---|---|---|
|
B815 |
M898, A898 and A898 at Erskine (NS454716) |
A8 at Bishopton, Renfrewshire (NS433713) |
|
| B840 | A816 near Carnasserie Castle (NM842008) |
A819 at Cladich (NN099222) |
Follows southern bank of Loch Awe for most of its length |
| B845 | A828 at Barcaldine (NM959415) |
Loch Awe south of Kilchrenan (NN047213) |
Crosses Loch Etive south of Bonawe Crosses the A85 at Taynuilt (NN007307) |
| B855 | A836 at Dunnet (ND221712) |
Easter Head (Dunnet Head) (ND202766) |
The most northerly numbered road on the mainland of Great Britain Passes through Hunspow and Brough |
| B871 | A897 near Kinbrace railway station (NC863319) |
A836 near Bettyhill (NC711576) |
|
| B873 | A836 at Altnaharra (NC569359) |
B871 at Syre, Highland (NC693440) |
|
| B887 | A859 north of Ardhasaig, Isle of Harris (NB137034) |
Huisinis, Isle of Harris (NA990120) |
Follows the northern shore of West Loch Tarbert for the first half of its route Goes through Bun Abhainn Eadarra, Miabhaig, Abhainn Suidhe and Beitearsaig |
| B888 | A865 at Dalabrog (NF753213) |
Pollarchar (NF746144) |
In the southernmost part of South Uist Continues, unclassified, to the ferry for Barra |
| B895 | A857 north of Stornoway (NB424355) |
Tolsta (NB531486) |
Follows the western shore of Broad Bay Goes by way of Tong |
| B897 | A859 approx 6 km southwest of Stornoway (NB385306) |
Ranais (NB413245) |
Goes via Crosbost |
| Road | From | To | Notes | |
|---|---|---|---|---|
| B8007 | A861 road, Salen, Ardnamurchan | Achosnich | the main road of the Ardnamurchan peninsula and thus the most westerly numbered road on the mainland of Great Britain | |
| B8011 | Garynahine, Isle of Lewis | Timsgerraidh, Isle of Lewis | ||
| B8013 | Lìonal, Isle of Lewis | Eòropaidh, Isle of Lewis | ||
| B8014 | Port Nis, Isle of Lewis | Eòropaidh, Isle of Lewis | ||
| B8015 | Lìonal, Isle of Lewis | Sgiogarstaigh, Isle of Lewis | ||
| B8045 | Jetty at the northern tip of Lismore | St. Moluag's Cathedral, Lismore | In the Inner Hebrides | |
| B8046 | A904 | Mid Calder | ||
| B8059 | B8011, Isle of Lewis (NB204288) | Barraglom, Great Bernera (NB164342) | Crosses to Great Bernera from Lewis via the Bernera Bridge | |
| B8060 | Balallan, Isle of Lewis | Leumrabhagh, Isle of Lewis | ||
| B8074 | A82, south of Bridge of Orchy | A85, near Dalmally | through Glen Orchy |
|
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