diff --git a/sys/include/net/someip.h b/sys/include/net/someip.h
new file mode 100644
index 0000000000..c001880460
--- /dev/null
+++ b/sys/include/net/someip.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2020 HAW Hamburg
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @defgroup    net_someip SOME/IP
+ * @ingroup     net
+ * @brief       Provides SOME/IP header and field defines
+ *
+ * @{
+ *
+ * @file
+ * @brief   SOME/IP header and field definitions
+ *
+ * @author  Jannes Volkens <jannes.volkens@haw-hamburg.de>
+ * @}
+ */
+#ifndef NET_SOMEIP_H
+#define NET_SOMEIP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+/**
+ * @brief SOME/IP header length size, excluding payload
+ */
+#define SOMEIP_HDR_LENGTH       (8U)
+/**
+ * @brief SOME/IP full header size, including all field expect for the payload
+ */
+#define SOMEIP_FULL_HDR_SIZE    (16U)
+
+/**
+ * @brief       Structure of the Message ID
+ */
+typedef struct {
+    uint16_t service_id; /**< Service ID */
+    uint16_t method_id;  /**< Method ID */
+} someip_message_id_t;
+
+/**
+ * @brief       Structure of the Request ID
+ */
+typedef struct {
+    uint16_t client_id;  /**< Client ID */
+    uint16_t session_id; /**< Session ID */
+} someip_request_id_t;
+
+/**
+ * @brief       SOME/IP header
+ */
+typedef struct __attribute__((packed)) {
+    someip_message_id_t message_id; /**< Message ID */
+    uint32_t length;                /**< Length */
+    someip_request_id_t request_id; /**< Request ID */
+    uint8_t protocol_version;       /**< Protocol Version */
+    uint8_t interface_version;      /**< Interface Version*/
+    uint8_t msg_type;               /**< Message Type*/
+    uint8_t return_code;            /**< Return Code*/
+} someip_hdr_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NET_SOMEIP_H */
+/** @} */