diff --git a/include/spdk/nvme_zns.h b/include/spdk/nvme_zns.h
index e399caece..9395288aa 100644
--- a/include/spdk/nvme_zns.h
+++ b/include/spdk/nvme_zns.h
@@ -72,6 +72,18 @@ const struct spdk_nvme_zns_ns_data *spdk_nvme_zns_ns_get_data(struct spdk_nvme_n
  */
 uint64_t spdk_nvme_zns_ns_get_zone_size(struct spdk_nvme_ns *ns);
 
+/**
+ * Get the number of zones for the given namespace.
+ *
+ * This function is thread safe and can be called at any point while the controller
+ * is attached to the SPDK NVMe driver.
+ *
+ * \param ns Namespace to query.
+ *
+ * \return the number of zones.
+ */
+uint64_t spdk_nvme_zns_ns_get_num_zones(struct spdk_nvme_ns *ns);
+
 /**
  * Get the Zoned Namespace Command Set Specific Identify Controller data
  * as defined by the NVMe Zoned Namespace Command Set Specification.
diff --git a/lib/nvme/nvme_zns.c b/lib/nvme/nvme_zns.c
index 0e5d6f1fc..3b3fe2649 100644
--- a/lib/nvme/nvme_zns.c
+++ b/lib/nvme/nvme_zns.c
@@ -48,6 +48,12 @@ spdk_nvme_zns_ns_get_zone_size(struct spdk_nvme_ns *ns)
 	return nsdata_zns->lbafe[nsdata->flbas.format].zsze * spdk_nvme_ns_get_sector_size(ns);
 }
 
+uint64_t
+spdk_nvme_zns_ns_get_num_zones(struct spdk_nvme_ns *ns)
+{
+	return spdk_nvme_ns_get_size(ns) / spdk_nvme_zns_ns_get_zone_size(ns);
+}
+
 const struct spdk_nvme_zns_ctrlr_data *
 spdk_nvme_zns_ctrlr_get_data(struct spdk_nvme_ctrlr *ctrlr)
 {
diff --git a/lib/nvme/spdk_nvme.map b/lib/nvme/spdk_nvme.map
index 137ace029..ebf7bb270 100644
--- a/lib/nvme/spdk_nvme.map
+++ b/lib/nvme/spdk_nvme.map
@@ -161,6 +161,7 @@
 	# public functions from nvme_zns.h
 	spdk_nvme_zns_ns_get_data;
 	spdk_nvme_zns_ns_get_zone_size;
+	spdk_nvme_zns_ns_get_num_zones;
 	spdk_nvme_zns_ctrlr_get_data;
 	spdk_nvme_zns_close_zone;
 	spdk_nvme_zns_finish_zone;