diff --git a/core.d.ts b/core.d.ts
index 3407946e..ba3142dd 100644
--- a/core.d.ts
+++ b/core.d.ts
@@ -150,6 +150,7 @@ export type FileExtension =
 	| 'arj'
 	| 'cpio'
 	| 'ace'
+	| 'avro'
 	; // eslint-disable-line semi-style
 
 export type MimeType =
@@ -296,6 +297,7 @@ export type MimeType =
 	| 'application/x-arj'
 	| 'application/x-cpio'
 	| 'application/x-ace-compressed'
+	| 'application/avro'
 	; // eslint-disable-line semi-style
 
 export type FileTypeResult = {
diff --git a/core.js b/core.js
index c5ebafae..843ad9ea 100644
--- a/core.js
+++ b/core.js
@@ -249,6 +249,13 @@ class FileTypeParser {
 			};
 		}
 
+		if (this.check([0x4F, 0x62, 0x6A, 0x01])) {
+			return {
+				ext: 'avro',
+				mime: 'application/avro',
+			};
+		}
+
 		if (this.checkString('FLIF')) {
 			return {
 				ext: 'flif',
diff --git a/fixture/fixture.avro b/fixture/fixture.avro
new file mode 100644
index 00000000..8b4981ba
Binary files /dev/null and b/fixture/fixture.avro differ
diff --git a/package.json b/package.json
index 54f012eb..088fcbc1 100644
--- a/package.json
+++ b/package.json
@@ -202,7 +202,8 @@
 		"class",
 		"arj",
 		"cpio",
-		"ace"
+		"ace",
+		"avro"
 	],
 	"dependencies": {
 		"readable-web-to-node-stream": "^3.0.2",
diff --git a/readme.md b/readme.md
index 114bae41..a4881265 100644
--- a/readme.md
+++ b/readme.md
@@ -359,6 +359,7 @@ Returns a `Set<string>` of supported MIME types.
 - [`asf`](https://en.wikipedia.org/wiki/Advanced_Systems_Format) - Advanced Systems Format
 - [`avi`](https://en.wikipedia.org/wiki/Audio_Video_Interleave) - Audio Video Interleave file
 - [`avif`](https://en.wikipedia.org/wiki/AV1#AV1_Image_File_Format_(AVIF)) - AV1 Image File Format
+- [`avro`](https://en.wikipedia.org/wiki/Apache_Avro#Avro_Object_Container_File) - Object container file developed by Apache Avro
 - [`blend`](https://wiki.blender.org/index.php/Dev:Source/Architecture/File_Format) - Blender project
 - [`bmp`](https://en.wikipedia.org/wiki/BMP_file_format) - Bitmap image file
 - [`bpg`](https://bellard.org/bpg/) - Better Portable Graphics file
diff --git a/supported.js b/supported.js
index 2eb9e9d4..42b45c49 100644
--- a/supported.js
+++ b/supported.js
@@ -147,6 +147,7 @@ export const extensions = [
 	'arj',
 	'cpio',
 	'ace',
+	'avro',
 ];
 
 export const mimeTypes = [
@@ -293,4 +294,5 @@ export const mimeTypes = [
 	'application/x-arj',
 	'application/x-cpio',
 	'application/x-ace-compressed',
+	'application/avro',
 ];