# Liste der Kantonsstrassen im Kanton Appenzell Ausserrhoden

Diese Liste listet alle Kantonsstrassen im Kanton Appenzell Ausserrhoden auf. Das Netz umfasst 227,283 Kilometer.

## Strassen

| Nummer | Hauptstrasse | Kategorie | Verlauf | Länge (km) |
| 1 | | HVS | Herisau (Platz–Obstmarkt–Heinrichsbad)–St. Gallen Winkeln | 2.085 |
| 2 | | HVS | Herisau–Waldstatt | 2.628 |
| 3 | 470 | HVS | Herisau–Gossau | 2.004 |
| 4.1 | | HVS | Herisau (Bahnhofstrasse) | 0.554 |
| 4.3 | | HVS | Herisau (Güterstrasse) | 0.788 |
| 5 | | HVS | Herisau (Mühlestrasse) | 0.668 |
| 6 | | HVS | St. Gallen–Herisau (Alter Zoll–Cilanderstrasse–Bierquelle) | 3.371 |
| 7 | | HVS | Waldstatt–Schönengrund | 6.071 |
| 8 | 462 | HVS | Waldstatt–Urnäsch | 6.196 |
| 9 | 463 | HVS | Waldstatt–Hundwil | 3.604 |
| 9.1 | | HVS | Waldstatt (Hirschenkreuzung–Auerhof) | 0.592 |
| 10 | 463 | HVS | Hundwil–Stein | 2.41 |
| 11 | 463 | HVS | Stein–Teufen | 4.006 |
| 12 | 447 | HVS | St. Gallen–Teufen–Bühler–Gais | 10.635 |
| 13 | 447 448 | HVS | Appenzell–Gais–Altstätten | 5.069 |
| 14 | 463 | HVS | Teufen–Speicher | 5.049 |
| 15 | 446 | HVS | St. Gallen–Speicher–Trogen | 4.135 |
| 16 | 463 | HVS | Trogen–Wald–Heiden | 10.115 |
| 17 | 445 | HVS | Heiden–Eggersriet | 3.61 |
| 18 | 463 | HVS | Heiden–Rheineck | 5.561 |
| 19 | | LVS | Heiden (Freihof–Mühle) | 0.751 |
| 19.1 | | LVS | Heiden (Freihof–Poststrasse) | 0.097 |
| 20.1 | | LVS | Herisau (Schmiedgasse/neue Steig) | 0.597 |
| 20.2 | | RVS | Herisau–Degersheim | 5.844 |
| 21.1 | | LVS | Herisau (Buchenstrasse) | 0.359 |
| 21.2 | | LVS | Herisau (Schützenstrasse) | 1.184 |
| 21.3 | | LVS | Herisau (Waisenhausstrasse) | 0.599 |
| 22 | | RVS | Herisau–Schwellbrunn | 4.621 |
| 23.1 | | RVS | Waldstatt (Kirche–Schulhaus) | 0.09 |
| 24 | 448 | RVS | Urnäsch–Appenzell | 2.263 |
| 25 | 459 | HVS | Hundwil–Appenzell | 2.376 |
| 26 | 448 | RVS | Urnäsch–Schwägalp | 10.313 |
| 27 | | RVS | Teufen (ARA)–Lustmühle | 1.842 |
| 29 | | LVS | Trogen–Altstätten | 5.063 |
| 30 | | RVS | St. Gallen–Rehetobel | 2.182 |
| 31.3 | | RVS | Heiden (Asylstrasse) | 0.307 |
| 32 | 445 | RVS | Heiden–Oberegg | 1.645 |
| 33 | 445 | RVS | Reute–Berneck | 2.719 |
| 34 | | RVS | Lutzenberg–Walzenhausen–Berneck | 5.731 |
| 34.1 | | LVS | Walzenhausen (Bahnhof–Alte Post) | 0.146 |
| 35 | | RVS | Rehetobel (Zweibrücken)–Kaien | 6.244 |
| 37 | | RVS | Thal–Lutzenberg | 0.673 |
| 38 | | LVS | Schwellbrunn–Dicken | 2.932 |
| 39 | | LVS | Schwellbrunn–Schönengrund | 2.551 |
| 40 | | LVS | Herisau (Huebstrasse) | 2.554 |
| 41 | | LVS | Schwellbrunn–Degersheim | 6.208 |
| 42 | | LVS | Schönengrund–Hemberg | 1.527 |
| 43 | | RVS | Zürchersmühle–Gonten | 1.265 |
| 43.1 | | LVS | Hundwil–Zürchersmühle | 5.481 |
| 44 | | LVS | Urnäsch–Hemberg | 5.943 |
| 45 | | RVS | Stein–Appenzell | 3.06 |
| 46 | | RVS | Teufen–Haslen | 1.372 |
| 47 | | LVS | Bühler–Trogen | 5.577 |
| 48 | | RVS | Speicher–Speicherschwendi | 2.931 |
| 49 | | LVS | Grub–Rehetobel | 2.572 |
| 50 | | LVS | Kaien–Oberegg | 2.818 |
| 51.1 | | LVS | Grub AR–Grub SG | 0.169 |
| 51.2 | | LVS | Wienacht (Kantonsgrenze SG)–Rorschach | 0.974 |
| 51.3 | | LVS | Wienacht (Landegg)–Tobel–Thal | 2.544 |
| 52 | | LVS | Heiden–Thal | 2.363 |
| 53 | | LVS | Wald–Haggen | 3.725 |
| 54 | | LVS | Wolfhalden–Lachen–Walzenhausen | 6.605 |
| 55 | | LVS | Wolfhalden–Thal | 1.897 |
| 56 | | LVS | Walzenhausen–St. Margrethen | 1.385 |
| 57 | | LVS | Reute–Altstätten | 4.799 |
| 57.1 | | LVS | Reute–Rebstein | 0.181 |
| 58 | | LVS | Wolfhalden–Zelg–Walzenhausen | 4.067 |
| 59 | | LVS | Lutzenberg (Haufen)–Brenden | 1.022 |
| 60 | | LVS | Walzenhausen–Au | 1.244 |
| 61 | | LVS | Walzenhausen (Leuchen–Gaismoos) | 0.685 |
| 62 | | LVS | Reute–Berneck | 0.711 |
| 63 | | LVS | Reute–Walzenhausen | 0.919 |
| 64 | | LVS | Urnäsch–Schönengrund | 5.498 |
| 65 | | LVS | Stein–Haslen | 0.648 |
| 80 | | HLS | Herisau (Durchgangsstrasse) | 1.289 |
| 90 | | HLS | Umfahrung Teufen (kantonale Autostrasse) | 4.97 |
Stand: 19. Januar 2010