Trelins

{{Use dmy dates|date=August 2023}}

{{Infobox French commune

|name = Trelins

|commune status = Commune

|arrondissement = Montbrison

|canton = Boën-sur-Lignon

|INSEE = 42313

|postal code = 42130

|mayor = Alexandre Palmier{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/en/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|website=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=9 August 2021|language=fr}}

|term = 2020–2026

|intercommunality = Loire Forez Agglomération

|coordinates = {{coord|45.7317|4.0086|format=dms|display=inline}}

|elevation m = 415

|elevation min m = 368

|elevation max m = 736

|area km2 = 8.09

|population = {{France metadata Wikidata|population_total}}

|population date = {{France metadata Wikidata|population_as_of}}

|population footnotes = {{France metadata Wikidata|population_footnotes}}

}}

Trelins is a commune in the Loire department, Auvergne-Rhône-Alpes region, central France.