diff --git a/CHANGELOG-6.4.md b/CHANGELOG-6.4.md
index 56efbaa4a9bbf..8a69b0c80ff17 100644
--- a/CHANGELOG-6.4.md
+++ b/CHANGELOG-6.4.md
@@ -1,3 +1,4 @@
+
 CHANGELOG for 6.4.x
 ===================
 
@@ -9,6 +10,7 @@ To get the diff between two versions, go to https://github.com/symfony/symfony/c
 
 * 6.4.11 (2024-08-30)
 
+ * bug #58214 [Dotenv] Fix can not load BOM-signed env files (hosni)
  * bug #58110 [PropertyAccess] Fix handling property names with a `.` (alexandre-daubois)
  * bug #58127 [Validator] synchronize IBAN formats (xabbuh)
  * bug #58112 fix Twig 3.12 compatibility (xabbuh)
diff --git a/src/Symfony/Component/Dotenv/Dotenv.php b/src/Symfony/Component/Dotenv/Dotenv.php
index 297310309a362..e527aff615f39 100644
--- a/src/Symfony/Component/Dotenv/Dotenv.php
+++ b/src/Symfony/Component/Dotenv/Dotenv.php
@@ -228,7 +228,7 @@ public function populate(array $values, bool $overrideExistingVars = false): voi
     public function parse(string $data, string $path = '.env'): array
     {
         $this->path = $path;
-        $this->data = str_replace(["\r\n", "\r"], "\n", $data);
+        $this->data = $this->normalizeString($data);
         $this->lineno = 1;
         $this->cursor = 0;
         $this->end = \strlen($this->data);
@@ -264,6 +264,25 @@ public function parse(string $data, string $path = '.env'): array
         }
     }
 
+    private function normalizeString(string $data): string
+    {
+        /**
+         * Remove BOM charachters from first of the string
+         * The order of the if statements is important due to the varying lengths of BOM characters (4, 3, or 2 bytes).
+         * @see https://github.com/symfony/symfony/issues/58214
+         * @see https://en.wikipedia.org/wiki/Byte_order_mark
+         */
+        if (\substr($data, 0, 4) == "\x00\x00\xFE\xFF" || \substr($data, 0, 4) == "\xFF\xFE\x00\x00") { // UTF-32 (big-endian|little-endian)
+            $data = \substr($data, 4);
+        } elseif (\substr($data, 0, 3) == "\xEF\xBB\xBF") { // UTF-8
+            $data = \substr($data, 3);
+        } elseif (\substr($data, 0, 2) == "\xFE\xFF" || \substr($data, 0, 2) == "\xFF\xFE") { // UTF-16 (big-endian|little-endian)
+            $data = \substr($data, 2);
+        }
+
+        return str_replace(["\r\n", "\r"], "\n", $data);
+    }
+
     private function lexVarname(): string
     {
         // var name + optional export
diff --git a/src/Symfony/Component/Dotenv/Tests/DotenvTest.php b/src/Symfony/Component/Dotenv/Tests/DotenvTest.php
index 644126d6b2ba1..d6de30274ed3e 100644
--- a/src/Symfony/Component/Dotenv/Tests/DotenvTest.php
+++ b/src/Symfony/Component/Dotenv/Tests/DotenvTest.php
@@ -180,6 +180,13 @@ public static function getEnvData()
             // underscores
             ['_FOO=BAR', ['_FOO' => 'BAR']],
             ['_FOO_BAR=FOOBAR', ['_FOO_BAR' => 'FOOBAR']],
+
+            // BOM charachters
+            ["\xEF\xBB\xBFFOO=BAR", ['FOO' => 'BAR']], // UTF-8
+            ["\xFE\xFFFOO=BAR", ['FOO' => 'BAR']], // UTF-16 (big-endian)
+            ["\xFF\xFEFOO=BAR", ['FOO' => 'BAR']], // UTF-16 (little-endian)
+            ["\x00\x00\xFE\xFFFOO=BAR", ['FOO' => 'BAR']], // UTF-32 (big-endian)
+            ["\xFF\xFE\x00\x00FOO=BAR", ['FOO' => 'BAR']], // UTF-32 (little-endian)
         ];
 
         if ('\\' !== \DIRECTORY_SEPARATOR) {