diff --git a/tests/bluetooth/tester/CMakeLists.txt b/tests/bluetooth/tester/CMakeLists.txt
index 2a407f2d20a..e44159223fc 100644
--- a/tests/bluetooth/tester/CMakeLists.txt
+++ b/tests/bluetooth/tester/CMakeLists.txt
@@ -35,3 +35,7 @@ endif()
 if(CONFIG_BT_BAP_UNICAST)
     target_sources(app PRIVATE src/btp_bap.c)
 endif()
+
+if(CONFIG_BT_HAS)
+    target_sources(app PRIVATE src/btp_has.c)
+endif()
diff --git a/tests/bluetooth/tester/overlay-le-audio.conf b/tests/bluetooth/tester/overlay-le-audio.conf
index e4a79bc9b2c..1645f10c8db 100644
--- a/tests/bluetooth/tester/overlay-le-audio.conf
+++ b/tests/bluetooth/tester/overlay-le-audio.conf
@@ -45,3 +45,8 @@ CONFIG_BT_VCP_VOL_REND_LOG_LEVEL_DBG=y
 # IAS
 CONFIG_BT_IAS=y
 CONFIG_BT_IAS_CLIENT=y
+
+# HAS
+CONFIG_BT_HAS=y
+CONFIG_BT_HAS_PRESET_COUNT=5
+CONFIG_BT_HAS_PRESET_NAME_DYNAMIC=y
diff --git a/tests/bluetooth/tester/src/btp/btp.h b/tests/bluetooth/tester/src/btp/btp.h
index c204e6c1d55..3edbf6b036f 100644
--- a/tests/bluetooth/tester/src/btp/btp.h
+++ b/tests/bluetooth/tester/src/btp/btp.h
@@ -23,6 +23,7 @@
 #include "btp_pacs.h"
 #include "btp_ascs.h"
 #include "btp_bap.h"
+#include "btp_has.h"
 
 #define BTP_MTU 1024
 #define BTP_DATA_MAX_SIZE (BTP_MTU - sizeof(struct btp_hdr))
@@ -45,7 +46,9 @@
 #define BTP_SERVICE_ID_PACS	12
 #define BTP_SERVICE_ID_ASCS	13
 #define BTP_SERVICE_ID_BAP	14
-#define BTP_SERVICE_ID_MAX	BTP_SERVICE_ID_BAP
+#define BTP_SERVICE_ID_HAS	15
+
+#define BTP_SERVICE_ID_MAX	BTP_SERVICE_ID_HAS
 
 #define BTP_STATUS_SUCCESS	0x00
 #define BTP_STATUS_FAILED	0x01
@@ -65,7 +68,7 @@ struct btp_hdr {
 	uint8_t  data[];
 } __packed;
 
-#define BTP_STATUS			0x00
+#define BTP_STATUS		0x00
 struct btp_status {
 	uint8_t code;
 } __packed;
diff --git a/tests/bluetooth/tester/src/btp/btp_has.h b/tests/bluetooth/tester/src/btp/btp_has.h
new file mode 100644
index 00000000000..fc87a3f3239
--- /dev/null
+++ b/tests/bluetooth/tester/src/btp/btp_has.h
@@ -0,0 +1,61 @@
+/* btp_has.h - Bluetooth tester headers */
+
+/*
+ * Copyright (c) 2023 Oticon
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* HAS commands */
+#define BTP_HAS_READ_SUPPORTED_COMMANDS	0x01
+struct btp_has_read_supported_commands_rp {
+	uint8_t data[0];
+} __packed;
+
+#define BTP_HAS_SET_ACTIVE_INDEX	0x02
+struct btp_has_set_active_index_cmd {
+	bt_addr_le_t address;
+	uint8_t index;
+} __packed;
+
+#define BTP_HAS_SET_PRESET_NAME		0x03
+struct btp_has_set_preset_name_cmd {
+	bt_addr_le_t address;
+	uint8_t index;
+	uint8_t length;
+	char    name[0];
+} __packed;
+
+#define BTP_HAS_REMOVE_PRESET		0x04
+struct btp_has_remove_preset_cmd {
+	bt_addr_le_t address;
+	uint8_t index;
+} __packed;
+
+#define BTP_HAS_ADD_PRESET		0x05
+struct btp_has_add_preset_cmd {
+	bt_addr_le_t address;
+	uint8_t index;
+	uint8_t props;
+	uint8_t length;
+	char    name[0];
+} __packed;
+
+#define BTP_HAS_SET_PROPERTIES		0x06
+struct btp_has_set_properties_cmd {
+	bt_addr_le_t address;
+	uint8_t index;
+	uint8_t props;
+} __packed;
+
+/* HAS events */
+#define BTP_HAS_EV_OPERATION_COMPLETED	0x80
+struct btp_has_operation_completed_ev {
+	bt_addr_le_t address;
+	uint8_t index;
+	uint8_t opcode;
+	uint8_t status;
+
+	/* RFU */
+	uint8_t flags;
+} __packed;
diff --git a/tests/bluetooth/tester/src/btp/bttester.h b/tests/bluetooth/tester/src/btp/bttester.h
index 7550d036062..a68cb3c5c73 100644
--- a/tests/bluetooth/tester/src/btp/bttester.h
+++ b/tests/bluetooth/tester/src/btp/bttester.h
@@ -86,3 +86,6 @@ uint8_t tester_unregister_ascs(void);
 
 uint8_t tester_init_bap(void);
 uint8_t tester_unregister_bap(void);
+
+uint8_t tester_init_has(void);
+uint8_t tester_unregister_has(void);
diff --git a/tests/bluetooth/tester/src/btp_core.c b/tests/bluetooth/tester/src/btp_core.c
index 5076d7c4a1b..b0b9a366a93 100644
--- a/tests/bluetooth/tester/src/btp_core.c
+++ b/tests/bluetooth/tester/src/btp_core.c
@@ -74,6 +74,9 @@ static uint8_t supported_services(const void *cmd, uint16_t cmd_len,
 #if defined(CONFIG_BT_VOCS) || defined(CONFIG_BT_VOCS_CLIENT)
 	tester_set_bit(rp->data, BTP_SERVICE_ID_VOCS);
 #endif /* CONFIG_BT_VOCS */
+#if defined(CONFIG_BT_HAS) || defined(CONFIG_BT_HAS_CLIENT)
+	tester_set_bit(rp->data, BTP_SERVICE_ID_HAS);
+#endif /* CONFIG_BT_HAS */
 
 	*rsp_len = sizeof(*rp) + 2;
 
@@ -140,6 +143,11 @@ static uint8_t register_service(const void *cmd, uint16_t cmd_len,
 		status = tester_init_bap();
 		break;
 #endif /* CONFIG_BT_BAP_UNICAST_CLIENT or CONFIG_BT_BAP_UNICAST_SERVER */
+#if defined(CONFIG_BT_HAS)
+	case BTP_SERVICE_ID_HAS:
+		status = tester_init_has();
+		break;
+#endif /* CONFIG_BT_HAS */
 	default:
 		LOG_WRN("unknown id: 0x%02x", cp->id);
 		status = BTP_STATUS_FAILED;
@@ -213,6 +221,11 @@ static uint8_t unregister_service(const void *cmd, uint16_t cmd_len,
 		status = tester_unregister_bap();
 		break;
 #endif /* CONFIG_BT_BAP_UNICAST_CLIENT or CONFIG_BT_BAP_UNICAST_SERVER */
+#if defined(CONFIG_BT_HAS)
+	case BTP_SERVICE_ID_HAS:
+		status = tester_unregister_has();
+		break;
+#endif /* CONFIG_BT_HAS */
 	default:
 		LOG_WRN("unknown id: 0x%x", cp->id);
 		status = BTP_STATUS_FAILED;
diff --git a/tests/bluetooth/tester/src/btp_has.c b/tests/bluetooth/tester/src/btp_has.c
new file mode 100644
index 00000000000..1ea93a593e7
--- /dev/null
+++ b/tests/bluetooth/tester/src/btp_has.c
@@ -0,0 +1,215 @@
+/* btp_has.c - Bluetooth HAS Tester */
+
+/*
+ * Copyright (c) 2023 Oticon
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include <zephyr/bluetooth/audio/has.h>
+
+#include "btp/btp.h"
+#include "zephyr/sys/byteorder.h"
+#include "zephyr/arch/common/ffs.h"
+#include <stdint.h>
+
+#include <zephyr/logging/log.h>
+#define LOG_MODULE_NAME bttester_has
+LOG_MODULE_REGISTER(LOG_MODULE_NAME, CONFIG_BTTESTER_LOG_LEVEL);
+
+static uint8_t has_supported_commands(const void *cmd, uint16_t cmd_len,
+				      void *rsp, uint16_t *rsp_len)
+{
+	struct btp_has_read_supported_commands_rp *rp = rsp;
+
+	/* octet 0 */
+	tester_set_bit(rp->data, BTP_HAS_READ_SUPPORTED_COMMANDS);
+
+	*rsp_len = sizeof(*rp) + 1;
+
+	return BTP_STATUS_SUCCESS;
+}
+
+static uint8_t has_set_active_index(const void *cmd, uint16_t cmd_len,
+				    void *rsp, uint16_t *rsp_len)
+{
+	const struct btp_has_set_active_index_cmd *cp = cmd;
+	int err = bt_has_preset_active_set(cp->index);
+
+	return (err) ? BTP_STATUS_FAILED : BTP_STATUS_SUCCESS;
+}
+
+static uint16_t has_presets;
+static char	temp_name[BT_HAS_PRESET_NAME_MAX + 1];
+
+static uint8_t has_set_preset_name(const void *cmd, uint16_t cmd_len,
+				   void *rsp, uint16_t *rsp_len)
+{
+	const struct btp_has_set_preset_name_cmd *cp = cmd;
+	const uint16_t fixed_size = sizeof(*cp);
+	int err = -1;
+
+	if (cmd_len >= fixed_size && cmd_len >= (fixed_size + cp->length)) {
+		int name_len = MIN(cp->length, BT_HAS_PRESET_NAME_MAX);
+
+		memcpy(temp_name, cp->name, name_len);
+		temp_name[name_len] = '\0';
+		err = bt_has_preset_name_change(cp->index, temp_name);
+	}
+	return (err) ? BTP_STATUS_FAILED : BTP_STATUS_SUCCESS;
+}
+
+static uint8_t has_remove_preset(const void *cmd, uint16_t cmd_len,
+				 void *rsp, uint16_t *rsp_len)
+{
+	const struct btp_has_remove_preset_cmd *cp = cmd;
+	int err = 0;
+
+	if (cp->index == BT_HAS_PRESET_INDEX_NONE) {
+		while (has_presets) {
+			uint8_t index = find_lsb_set(has_presets);
+
+			err = bt_has_preset_unregister(index);
+			if (err) {
+				break;
+			}
+			has_presets &= ~(1 << (index - 1));
+		}
+	} else {
+		err = bt_has_preset_unregister(cp->index);
+		if (!err) {
+			has_presets &= ~(1 << (cp->index - 1));
+		}
+	}
+	return (err) ? BTP_STATUS_FAILED : BTP_STATUS_SUCCESS;
+}
+
+static int has_preset_selected(unsigned char index, bool sync)
+{
+	return BTP_STATUS_SUCCESS;
+}
+
+static const struct bt_has_preset_ops has_preset_ops = {
+	has_preset_selected, NULL
+};
+
+static uint8_t has_add_preset(const void *cmd, uint16_t cmd_len,
+			      void *rsp, uint16_t *rsp_len)
+{
+	const struct btp_has_add_preset_cmd *cp = cmd;
+	const uint16_t fixed_size = sizeof(*cp);
+	int err = -1;
+
+	if (cmd_len >= fixed_size && cmd_len >= (fixed_size + cp->length)) {
+		int name_len = MIN(cp->length, BT_HAS_PRESET_NAME_MAX);
+
+		memcpy(temp_name, cp->name, name_len);
+		temp_name[name_len] = '\0';
+		struct bt_has_preset_register_param preset_params = {
+			cp->index, cp->props, temp_name, &has_preset_ops
+		};
+		err = bt_has_preset_register(&preset_params);
+		if (!err) {
+			has_presets |= 1 << (cp->index - 1);
+		}
+	}
+	return (err) ? BTP_STATUS_FAILED : BTP_STATUS_SUCCESS;
+}
+
+static uint8_t has_set_properties(const void *cmd, uint16_t cmd_len,
+				  void *rsp, uint16_t *rsp_len)
+{
+	const struct btp_has_set_properties_cmd *cp = cmd;
+	int err = (cp->props & BT_HAS_PROP_AVAILABLE) ?
+		bt_has_preset_available(cp->index) :
+		bt_has_preset_unavailable(cp->index);
+
+	return (err) ? BTP_STATUS_FAILED : BTP_STATUS_SUCCESS;
+}
+
+static const struct btp_handler has_handlers[] = {
+	{
+		.opcode = BTP_HAS_READ_SUPPORTED_COMMANDS,
+		.index = BTP_INDEX_NONE,
+		.expect_len = 0,
+		.func = has_supported_commands
+	},
+	{
+		.opcode = BTP_HAS_SET_ACTIVE_INDEX,
+		.expect_len = sizeof(struct btp_has_set_active_index_cmd),
+		.func = has_set_active_index
+	},
+	{
+		.opcode = BTP_HAS_SET_PRESET_NAME,
+		.expect_len = BTP_HANDLER_LENGTH_VARIABLE,
+		.func = has_set_preset_name
+	},
+	{
+		.opcode = BTP_HAS_REMOVE_PRESET,
+		.expect_len = sizeof(struct btp_has_remove_preset_cmd),
+		.func = has_remove_preset
+	},
+	{
+		.opcode = BTP_HAS_ADD_PRESET,
+		.expect_len = BTP_HANDLER_LENGTH_VARIABLE,
+		.func = has_add_preset
+	},
+	{
+		.opcode = BTP_HAS_SET_PROPERTIES,
+		.expect_len = sizeof(struct btp_has_set_properties_cmd),
+		.func = has_set_properties
+	}
+};
+
+static const char *preset_name(uint8_t index)
+{
+	switch (index) {
+	case 0: return "PRESET_0";
+	case 1: return "PRESET_1";
+	case 2: return "PRESET_2";
+	case 3: return "PRESET_3";
+	case 4: return "PRESET_4";
+	case 5: return "PRESET_5";
+	case 6: return "PRESET_6";
+	case 7: return "PRESET_7";
+	default: return "PRESET_?";
+	}
+}
+
+#define PRESETS_CONFIGURED 3
+#define LAST_PRESET	   MIN(PRESETS_CONFIGURED, CONFIG_BT_HAS_PRESET_COUNT)
+
+uint8_t tester_init_has(void)
+{
+	tester_register_command_handlers(BTP_SERVICE_ID_HAS, has_handlers,
+					 ARRAY_SIZE(has_handlers));
+
+	struct bt_has_register_param params = {
+		BT_HAS_HEARING_AID_TYPE_BINAURAL, false, true
+	};
+	int err = bt_has_register(&params);
+
+	if (!err) {
+		for (uint8_t index = 1; index <= LAST_PRESET; index++) {
+			enum bt_has_properties properties = (index < PRESETS_CONFIGURED) ?
+				BT_HAS_PROP_WRITABLE | BT_HAS_PROP_AVAILABLE :
+				BT_HAS_PROP_WRITABLE;
+			struct bt_has_preset_register_param preset_params = {
+				index, properties, preset_name(index), &has_preset_ops
+			};
+
+			err = bt_has_preset_register(&preset_params);
+			if (!err) {
+				has_presets |= 1 << (index - 1);
+			} else {
+				break;
+			}
+		}
+	}
+
+	return (err) ? BTP_STATUS_FAILED : BTP_STATUS_SUCCESS;
+}
+
+uint8_t tester_unregister_has(void)
+{
+	return BTP_STATUS_SUCCESS;
+}