diff --git a/modules/openapi-generator/src/main/resources/csharp/libraries/generichost/JsonConverter.mustache b/modules/openapi-generator/src/main/resources/csharp/libraries/generichost/JsonConverter.mustache
index 24810c9cee43..813a58bd2316 100644
--- a/modules/openapi-generator/src/main/resources/csharp/libraries/generichost/JsonConverter.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp/libraries/generichost/JsonConverter.mustache
@@ -251,7 +251,24 @@
                         {{^isNumeric}}
                         {{^isDate}}
                         {{^isDateTime}}
+                            {{#items.isEnum}}
+                            if (utf8JsonReader.TokenType != JsonTokenType.Null)
+                            {
+                                var {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Items = new List<{{#items.isInnerEnum}}{{classname}}.{{/items.isInnerEnum}}{{{items.datatypeWithEnum}}}>();
+                                while (utf8JsonReader.Read())
+                                {
+                                    if (utf8JsonReader.TokenType == JsonTokenType.EndArray)
+                                        break;
+                                    string{{nrt?}} {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}ItemRawValue = utf8JsonReader.GetString();
+                                    if ({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}ItemRawValue != null)
+                                        {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Items.Add({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.FromStringOrDefault({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}ItemRawValue){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}FromStringOrDefault({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}ItemRawValue){{/items.isInnerEnum}});
+                                }
+                                {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}{{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Items);
+                            }
+                            {{/items.isEnum}}
+                            {{^items.isEnum}}
                             {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}JsonSerializer.Deserialize<{{{datatypeWithEnum}}}>(ref utf8JsonReader, jsonSerializerOptions){{^isNullable}}{{nrt!}}{{/isNullable}});
+                            {{/items.isEnum}}
                         {{/isDateTime}}
                         {{/isDate}}
                         {{/isNumeric}}
@@ -612,14 +629,30 @@
             if ({{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}} != null)
             {
                 writer.WritePropertyName("{{baseName}}");
+                {{^items.isEnum}}
                 JsonSerializer.Serialize(writer, {{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}}, jsonSerializerOptions);
+                {{/items.isEnum}}
+                {{#items.isEnum}}
+                writer.WriteStartArray();
+                foreach (var {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item in {{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}})
+                    {{^items.isNumeric}}writer.WriteStringValue({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}});{{/items.isNumeric}}{{#items.isNumeric}}writer.WriteNumberValue({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}});{{/items.isNumeric}}
+                writer.WriteEndArray();
+                {{/items.isEnum}}
             }
             else
                 writer.WriteNull("{{baseName}}");
             {{/isNullable}}
             {{^isNullable}}
             writer.WritePropertyName("{{baseName}}");
+            {{^items.isEnum}}
             JsonSerializer.Serialize(writer, {{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}}, jsonSerializerOptions);
+            {{/items.isEnum}}
+            {{#items.isEnum}}
+            writer.WriteStartArray();
+            foreach (var {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item in {{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}})
+                {{^items.isNumeric}}writer.WriteStringValue({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}});{{/items.isNumeric}}{{#items.isNumeric}}writer.WriteNumberValue({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}});{{/items.isNumeric}}
+            writer.WriteEndArray();
+            {{/items.isEnum}}
             {{/isNullable}}
             {{/required}}
             {{^required}}
@@ -628,7 +661,15 @@
                 if ({{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}}Option.Value != null)
                 {
                     writer.WritePropertyName("{{baseName}}");
+                    {{^items.isEnum}}
                     JsonSerializer.Serialize(writer, {{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}}, jsonSerializerOptions);
+                    {{/items.isEnum}}
+                    {{#items.isEnum}}
+                    writer.WriteStartArray();
+                    foreach (var {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item in {{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}}Option.Value{{nrt!}})
+                        {{^items.isNumeric}}writer.WriteStringValue({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}});{{/items.isNumeric}}{{#items.isNumeric}}writer.WriteNumberValue({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}});{{/items.isNumeric}}
+                    writer.WriteEndArray();
+                    {{/items.isEnum}}
                 }
                 else
                     writer.WriteNull("{{baseName}}");
@@ -636,7 +677,15 @@
             {{^isNullable}}
             {
                 writer.WritePropertyName("{{baseName}}");
+                {{^items.isEnum}}
                 JsonSerializer.Serialize(writer, {{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}}, jsonSerializerOptions);
+                {{/items.isEnum}}
+                {{#items.isEnum}}
+                writer.WriteStartArray();
+                foreach (var {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item in {{#lambda.camelcase_sanitize_param}}{{classname}}{{/lambda.camelcase_sanitize_param}}.{{name}}{{nrt!}})
+                    {{^items.isNumeric}}writer.WriteStringValue({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}});{{/items.isNumeric}}{{#items.isNumeric}}writer.WriteNumberValue({{^items.isInnerEnum}}{{{items.datatypeWithEnum}}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}}{{#items.isInnerEnum}}{{classname}}.{{{items.datatypeWithEnum}}}ToJsonValue({{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}Item){{/items.isInnerEnum}});{{/items.isNumeric}}
+                writer.WriteEndArray();
+                {{/items.isEnum}}
             }
             {{/isNullable}}
             {{/required}}
diff --git a/modules/openapi-generator/src/test/resources/3_0/csharp/enum-array.yaml b/modules/openapi-generator/src/test/resources/3_0/csharp/enum-array.yaml
new file mode 100644
index 000000000000..26e5f6873504
--- /dev/null
+++ b/modules/openapi-generator/src/test/resources/3_0/csharp/enum-array.yaml
@@ -0,0 +1,51 @@
+openapi: 3.0.0
+info:
+  title: Enum Array Test
+  description: >-
+    Tests that array-of-enum properties are serialized and deserialized using
+    the defined enum rendering functions rather than falling back to default
+    PascalCase JSON serialization.
+  version: 1.0.0
+  license:
+    name: Apache-2.0
+    url: 'https://www.apache.org/licenses/LICENSE-2.0.html'
+paths:
+  /shipments:
+    get:
+      operationId: GetShipments
+      tags:
+        - Shipments
+      responses:
+        '200':
+          description: Returns a list of shipments
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Shipment'
+servers:
+  - url: 'http://localhost'
+components:
+  schemas:
+    Shipment:
+      type: object
+      required:
+        - id
+        - allowedMethods
+      properties:
+        id:
+          type: integer
+          format: int32
+        allowedMethods:
+          type: array
+          items:
+            $ref: '#/components/schemas/ShippingMethod'
+        preferredMethod:
+          $ref: '#/components/schemas/ShippingMethod'
+    ShippingMethod:
+      type: string
+      enum:
+        - standard
+        - express
+        - overnight