diff --git a/api/errors/errors.go b/api/errors/errors.go
index 775add32..7ce7c5fe 100644
--- a/api/errors/errors.go
+++ b/api/errors/errors.go
@@ -1822,6 +1822,10 @@ func TransformToS3Error(err error) error {
 		return GetAPIError(ErrGatewayTimeout)
 	}
 
+	if errors.Is(err, frostfs.ErrGlobalDomainIsAlreadyTaken) {
+		return GetAPIError(ErrBucketAlreadyExists)
+	}
+
 	return GetAPIError(ErrInternalError)
 }
 
diff --git a/api/layer/frostfs/frostfs.go b/api/layer/frostfs/frostfs.go
index 7f4a568c..ba013504 100644
--- a/api/layer/frostfs/frostfs.go
+++ b/api/layer/frostfs/frostfs.go
@@ -237,6 +237,9 @@ var (
 
 	// ErrGatewayTimeout is returned from FrostFS in case of timeout, deadline exceeded etc.
 	ErrGatewayTimeout = errors.New("gateway timeout")
+
+	// ErrGlobalDomainIsAlreadyTaken is returned from FrostFS in case of global domain is already taken.
+	ErrGlobalDomainIsAlreadyTaken = errors.New("global domain is already taken")
 )
 
 // FrostFS represents virtual connection to FrostFS network.
diff --git a/internal/frostfs/frostfs.go b/internal/frostfs/frostfs.go
index 38b8be7a..7b4fba9c 100644
--- a/internal/frostfs/frostfs.go
+++ b/internal/frostfs/frostfs.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"strconv"
+	"strings"
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer/frostfs"
@@ -483,6 +484,10 @@ func handleObjectError(msg string, err error) error {
 		return fmt.Errorf("%s: %w: %s", msg, frostfs.ErrGatewayTimeout, err.Error())
 	}
 
+	if strings.Contains(err.Error(), "global domain is already taken") {
+		return fmt.Errorf("%s: %w: %s", msg, frostfs.ErrGlobalDomainIsAlreadyTaken, err.Error())
+	}
+
 	return fmt.Errorf("%s: %w", msg, err)
 }