diff --git a/gogs.go b/gogs.go
index 88f53eeb8..034e131bc 100644
--- a/gogs.go
+++ b/gogs.go
@@ -19,7 +19,7 @@ import (
 // Test that go1.2 tag above is included in builds. main.go refers to this definition.
 const go12tag = true
 
-const APP_VER = "0.2.0.0402 Alpha"
+const APP_VER = "0.2.0.0403 Alpha"
 
 func init() {
 	base.AppVer = APP_VER
diff --git a/models/repo.go b/models/repo.go
index 11e23ecd0..56f289097 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -372,9 +372,8 @@ func RepoPath(userName, repoName string) string {
 // ChangeRepositoryName changes all corresponding setting from old repository name to new one.
 func ChangeRepositoryName(userName, oldRepoName, newRepoName string) (err error) {
 	// Update accesses.
-	accesses := make([]Access, 0, 5)
-	err = orm.Find(&accesses, &Access{RepoName: strings.ToLower(userName + "/" + oldRepoName)})
-	if err != nil {
+	accesses := make([]Access, 0, 10)
+	if err = orm.Find(&accesses, &Access{RepoName: strings.ToLower(userName + "/" + oldRepoName)}); err != nil {
 		return err
 	}
 	for i := range accesses {
diff --git a/models/user.go b/models/user.go
index 4908552f2..c5e46b480 100644
--- a/models/user.go
+++ b/models/user.go
@@ -203,8 +203,52 @@ func VerifyUserActiveCode(code string) (user *User) {
 	return nil
 }
 
+// ChangeUserName changes all corresponding setting from old user name to new one.
+func ChangeUserName(user *User, newUserName string) (err error) {
+	newUserName = strings.ToLower(newUserName)
+
+	// Update accesses of user.
+	accesses := make([]Access, 0, 10)
+	if err = orm.Find(&accesses, &Access{UserName: user.LowerName}); err != nil {
+		return err
+	}
+	for i := range accesses {
+		accesses[i].UserName = newUserName
+		if strings.HasPrefix(accesses[i].RepoName, user.LowerName+"/") {
+			accesses[i].RepoName = strings.Replace(accesses[i].RepoName, user.LowerName, newUserName, 1)
+			if err = UpdateAccess(&accesses[i]); err != nil {
+				return err
+			}
+		}
+	}
+
+	repos, err := GetRepositories(user)
+	if err != nil {
+		return err
+	}
+	for i := range repos {
+		accesses = make([]Access, 0, 10)
+		// Update accesses of user repository.
+		if err = orm.Find(&accesses, &Access{RepoName: user.LowerName + "/" + repos[i].LowerName}); err != nil {
+			return err
+		}
+
+		for j := range accesses {
+			accesses[j].RepoName = newUserName + "/" + repos[i].LowerName
+			if err = UpdateAccess(&accesses[j]); err != nil {
+				return err
+			}
+		}
+	}
+
+	// Change user directory name.
+	return os.Rename(UserPath(user.LowerName), UserPath(newUserName))
+}
+
 // UpdateUser updates user's information.
 func UpdateUser(user *User) (err error) {
+	user.LowerName = strings.ToLower(user.Name)
+
 	if len(user.Location) > 255 {
 		user.Location = user.Location[:255]
 	}
@@ -233,6 +277,11 @@ func DeleteUser(user *User) error {
 		return err
 	}
 
+	// Delete all accesses.
+	if _, err = orm.Delete(&Access{UserName: user.LowerName}); err != nil {
+		return err
+	}
+
 	// Delete all SSH keys.
 	keys := make([]PublicKey, 0, 10)
 	if err = orm.Find(&keys, &PublicKey{OwnerId: user.Id}); err != nil {
diff --git a/modules/auth/user.go b/modules/auth/user.go
index 2d3c29fde..015059f7d 100644
--- a/modules/auth/user.go
+++ b/modules/auth/user.go
@@ -75,6 +75,7 @@ type FeedsForm struct {
 }
 
 type UpdateProfileForm struct {
+	UserName string `form:"username" binding:"Required;AlphaDash;MaxSize(30)"`
 	Email    string `form:"email" binding:"Required;Email;MaxSize(50)"`
 	Website  string `form:"website" binding:"MaxSize(50)"`
 	Location string `form:"location" binding:"MaxSize(50)"`
@@ -83,6 +84,7 @@ type UpdateProfileForm struct {
 
 func (f *UpdateProfileForm) Name(field string) string {
 	names := map[string]string{
+		"UserName": "Username",
 		"Email":    "E-mail address",
 		"Website":  "Website",
 		"Location": "Location",
diff --git a/routers/repo/repo.go b/routers/repo/repo.go
index a55647a31..ae51c5513 100644
--- a/routers/repo/repo.go
+++ b/routers/repo/repo.go
@@ -291,7 +291,7 @@ func SettingPost(ctx *middleware.Context) {
 				ctx.RenderWithErr("Repository name has been taken in your repositories.", "repo/setting", nil)
 				return
 			} else if err = models.ChangeRepositoryName(ctx.Repo.Owner.Name, ctx.Repo.Repository.Name, newRepoName); err != nil {
-				ctx.Handle(404, "repo.SettingPost(update)", err)
+				ctx.Handle(404, "repo.SettingPost(change repository name)", err)
 				return
 			}
 			log.Trace("%s Repository name changed: %s/%s -> %s", ctx.Req.RequestURI, ctx.User.Name, ctx.Repo.Repository.Name, newRepoName)
diff --git a/routers/user/setting.go b/routers/user/setting.go
index 75adf2b81..4b6d88a36 100644
--- a/routers/user/setting.go
+++ b/routers/user/setting.go
@@ -23,15 +23,27 @@ func Setting(ctx *middleware.Context, form auth.UpdateProfileForm) {
 	user := ctx.User
 	ctx.Data["Owner"] = user
 
-	if ctx.Req.Method == "GET" {
+	if ctx.Req.Method == "GET" || ctx.HasError() {
 		ctx.HTML(200, "user/setting")
 		return
 	}
 
-	// below is for POST requests
-	if hasErr, ok := ctx.Data["HasError"]; ok && hasErr.(bool) {
-		ctx.HTML(200, "user/setting")
-		return
+	// Check if user name has been changed.
+	if user.Name != form.UserName {
+		isExist, err := models.IsUserExist(form.UserName)
+		if err != nil {
+			ctx.Handle(404, "user.Setting(update: check existence)", err)
+			return
+		} else if isExist {
+			ctx.RenderWithErr("User name has been taken.", "user/setting", &form)
+			return
+		} else if err = models.ChangeUserName(user, form.UserName); err != nil {
+			ctx.Handle(404, "user.Setting(change user name)", err)
+			return
+		}
+		log.Trace("%s User name changed: %s -> %s", ctx.Req.RequestURI, user.Name, form.UserName)
+
+		user.Name = form.UserName
 	}
 
 	user.Email = form.Email
@@ -46,7 +58,6 @@ func Setting(ctx *middleware.Context, form auth.UpdateProfileForm) {
 
 	ctx.Data["IsSuccess"] = true
 	ctx.HTML(200, "user/setting")
-
 	log.Trace("%s User setting updated: %s", ctx.Req.RequestURI, ctx.User.LowerName)
 }
 
diff --git a/templates/user/setting.tmpl b/templates/user/setting.tmpl
index 283a8df8b..f44218cde 100644
--- a/templates/user/setting.tmpl
+++ b/templates/user/setting.tmpl
@@ -10,30 +10,37 @@
                 {{if .IsSuccess}}<p class="alert alert-success">Your profile has been successfully updated.</p>{{else if .HasError}}<p class="alert alert-danger form-error">{{.ErrorMsg}}</p>{{end}}
                 <p>Your Email will be public and used for Account related notifications and any web based operations made via the web.</p>
                 <div class="form-group">
-                    <label class="col-md-2 control-label">Email</label>
+                    <label class="col-md-2 control-label">Username<strong class="text-danger">*</strong></label>
                     <div class="col-md-8">
-                        <input type="text" name="email" class="form-control" placeholder="Type your e-mail address" value="{{.Owner.Email}}">
+                        <input name="username" class="form-control" placeholder="Type your user name" required="required" value="{{.SignedUser.Name}}">
+                    </div>
+                </div>
+
+                <div class="form-group">
+                    <label class="col-md-2 control-label">Email<strong class="text-danger">*</strong></label>
+                    <div class="col-md-8">
+                        <input name="email" class="form-control" placeholder="Type your e-mail address" required="required" value="{{.SignedUser.Email}}">
                     </div>
                 </div>
 
                 <div class="form-group">
                     <label class="col-md-2 control-label">Website</label>
                     <div class="col-md-8">
-                        <input type="text" name="website" class="form-control" placeholder="Type your website URL" value="{{.Owner.Website}}">
+                        <input name="website" class="form-control" placeholder="Type your website URL" value="{{.SignedUser.Website}}">
                     </div>
                 </div>
 
                 <div class="form-group">
                     <label class="col-md-2 control-label">Location</label>
                     <div class="col-md-8">
-                        <input type="text" name="location" class="form-control" placeholder="Type your current location" value="{{.Owner.Location}}">
+                        <input name="location" class="form-control" placeholder="Type your current location" value="{{.SignedUser.Location}}">
                     </div>
                 </div>
 
                 <div class="form-group {{if .Err_Avatar}}has-error has-feedback{{end}}">
                     <label class="col-md-2 control-label">Gravatar Email<strong class="text-danger">*</strong></label>
                     <div class="col-md-8">
-                        <input type="text" name="avatar" class="form-control" placeholder="Type your Gravatar e-mail address" required="required" value="{{.Owner.AvatarEmail}}">
+                        <input name="avatar" class="form-control" placeholder="Type your Gravatar e-mail address" required="required" value="{{.SignedUser.AvatarEmail}}">
                     </div>
                 </div>