diff --git a/extensions/dialects.md b/extensions/dialects.md
index 2c2ab5c5..0ead8b14 100644
--- a/extensions/dialects.md
+++ b/extensions/dialects.md
@@ -39,3 +39,4 @@ only dialect the specification defines; all others are opaque to Ossie.
 | `THOUGHTSPOT` | ThoughtSpot formula language |
 | `DAX` | Data Analysis Expressions (Power BI / Analysis Services) |
 | `HOLISTICS_AQL` | Holistics AQL (Analytical Query Language) |
+| `TRINO` | Trino SQL |
diff --git a/python/src/ossie/models.py b/python/src/ossie/models.py
index 4cd11736..333f32f5 100644
--- a/python/src/ossie/models.py
+++ b/python/src/ossie/models.py
@@ -134,6 +134,7 @@ class OssieDialect(str, Enum):
     DAX = "DAX"
     HOLISTICS_AQL = "HOLISTICS_AQL"
     OSSIE_SQL_2026 = "OSSIE_SQL_2026"
+    TRINO = "TRINO"
 
 
 class OssieDataType(str, Enum):
diff --git a/validation/validate.py b/validation/validate.py
index c123869c..afaa7213 100644
--- a/validation/validate.py
+++ b/validation/validate.py
@@ -122,6 +122,7 @@
     "SNOWFLAKE": "snowflake",
     "DATABRICKS": "databricks",
     "BIGQUERY": "bigquery",
+    "TRINO": "trino",
 }
 
 # Known non-SQL dialects: sqlglot cannot parse them, so their expressions are