diff --git a/src/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsquery.php b/src/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsquery.php
new file mode 100644
index 00000000..df6eecc8
--- /dev/null
+++ b/src/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsquery.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MartinGeorgiev\Doctrine\ORM\Query\AST\Functions;
+
+/**
+ * Implementation of PostgreSQL WEBSEARCH_TO_TSQUERY().
+ *
+ * @see https://www.postgresql.org/docs/current/textsearch-controls.html
+ * @since 3.5
+ *
+ * @author Jan Klan <jan@klan.com.au>
+ */
+class WebsearchToTsquery extends BaseVariadicFunction
+{
+    protected function getNodeMappingPattern(): array
+    {
+        return ['StringPrimary'];
+    }
+
+    protected function getFunctionName(): string
+    {
+        return 'websearch_to_tsquery';
+    }
+
+    protected function getMinArgumentCount(): int
+    {
+        return 1;
+    }
+
+    protected function getMaxArgumentCount(): int
+    {
+        return 2;
+    }
+}
diff --git a/tests/Integration/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsqueryTest.php b/tests/Integration/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsqueryTest.php
new file mode 100644
index 00000000..44f4402c
--- /dev/null
+++ b/tests/Integration/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsqueryTest.php
@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Integration\MartinGeorgiev\Doctrine\ORM\Query\AST\Functions;
+
+use Doctrine\DBAL\Exception\DriverException;
+use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\WebsearchToTsquery;
+use PHPUnit\Framework\Attributes\Test;
+
+class WebsearchToTsqueryTest extends TextTestCase
+{
+    protected function getStringFunctions(): array
+    {
+        return [
+            'websearch_to_tsquery' => WebsearchToTsquery::class,
+        ];
+    }
+
+    #[Test]
+    public function websearch_to_tsquery_with_explicit_config(): void
+    {
+        $dql = "SELECT websearch_to_tsquery('english', '\"sad cat\" or \"fat rat\"') as result FROM Fixtures\\MartinGeorgiev\\Doctrine\\Entity\\ContainsTexts t WHERE t.id = 1";
+        $result = $this->executeDqlQuery($dql);
+        $this->assertSame("'sad' <-> 'cat' | 'fat' <-> 'rat'", $result[0]['result']);
+    }
+
+    #[Test]
+    public function websearch_to_tsquery_with_default_config(): void
+    {
+        $dql = "SELECT websearch_to_tsquery('\"sad cat\" or \"fat rat\"') as result FROM Fixtures\\MartinGeorgiev\\Doctrine\\Entity\\ContainsTexts t WHERE t.id = 1";
+        $result = $this->executeDqlQuery($dql);
+        $this->assertSame("'sad' <-> 'cat' | 'fat' <-> 'rat'", $result[0]['result']);
+    }
+
+    #[Test]
+    public function totsquery_throws_with_invalid_input(): void
+    {
+        $this->expectException(DriverException::class);
+        $this->expectExceptionMessageMatches('/text search configuration .*invalid_regconfig.* does not exist/i');
+        $dql = "SELECT websearch_to_tsquery('invalid_regconfig', 'foo') as result FROM Fixtures\\MartinGeorgiev\\Doctrine\\Entity\\ContainsTexts t WHERE t.id = 1";
+        $this->executeDqlQuery($dql);
+    }
+}
diff --git a/tests/Unit/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsqueryTest.php b/tests/Unit/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsqueryTest.php
new file mode 100644
index 00000000..9cebcea0
--- /dev/null
+++ b/tests/Unit/MartinGeorgiev/Doctrine/ORM/Query/AST/Functions/WebsearchToTsqueryTest.php
@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\MartinGeorgiev\Doctrine\ORM\Query\AST\Functions;
+
+use Fixtures\MartinGeorgiev\Doctrine\Entity\ContainsTexts;
+use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\BaseVariadicFunction;
+use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\Exception\InvalidArgumentForVariadicFunctionException;
+use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\WebsearchToTsquery;
+use PHPUnit\Framework\Attributes\Test;
+
+class WebsearchToTsqueryTest extends BaseVariadicFunctionTestCase
+{
+    protected function createFixture(): BaseVariadicFunction
+    {
+        return new WebsearchToTsquery('WEBSEARCH_TO_TSQUERY');
+    }
+
+    protected function getStringFunctions(): array
+    {
+        return [
+            'WEBSEARCH_TO_TSQUERY' => WebsearchToTsquery::class,
+        ];
+    }
+
+    protected function getExpectedSqlStatements(): array
+    {
+        return [
+            'converts text to tsquery with default config' => 'SELECT websearch_to_tsquery(c0_.text1) AS sclr_0 FROM ContainsTexts c0_',
+            'converts function result to tsquery' => 'SELECT websearch_to_tsquery(UPPER(c0_.text1)) AS sclr_0 FROM ContainsTexts c0_',
+            'converts text to tsquery with specified config' => "SELECT websearch_to_tsquery('english', c0_.text1) AS sclr_0 FROM ContainsTexts c0_",
+        ];
+    }
+
+    protected function getDqlStatements(): array
+    {
+        return [
+            'converts text to tsquery with default config' => \sprintf('SELECT WEBSEARCH_TO_TSQUERY(e.text1) FROM %s e', ContainsTexts::class),
+            'converts function result to tsquery' => \sprintf('SELECT WEBSEARCH_TO_TSQUERY(UPPER(e.text1)) FROM %s e', ContainsTexts::class),
+            'converts text to tsquery with specified config' => \sprintf("SELECT WEBSEARCH_TO_TSQUERY('english', e.text1) FROM %s e", ContainsTexts::class),
+        ];
+    }
+
+    #[Test]
+    public function throws_exception_for_too_many_arguments(): void
+    {
+        $this->expectException(InvalidArgumentForVariadicFunctionException::class);
+
+        $dql = \sprintf("SELECT WEBSEARCH_TO_TSQUERY('english', e.text1, 'extra') FROM %s e", ContainsTexts::class);
+        $this->assertSqlFromDql('', $dql);
+    }
+}