diff --git a/README.md b/README.md
index 6db49409..b882d4f6 100644
--- a/README.md
+++ b/README.md
@@ -384,9 +384,10 @@ export FORGIT_LOG_FZF_OPTS='
 
 ## other options
 
-| Option                      | Description                               | Default                                       |
-|-----------------------------|-------------------------------------------|-----------------------------------------------|
-| `FORGIT_LOG_FORMAT`         | git log format                            | `%C(auto)%h%d %s %C(black)%C(bold)%cr%Creset` |
+| Option                                     | Description                                   | Default                                       |
+|--------------------------------------------|-----------------------------------------------|-----------------------------------------------|
+| `FORGIT_CHECKOUT_BRANCH_EXCLUDE_WORKTREES` | exclude worktree branches in `gcb`            | `true`                                        |
+| `FORGIT_LOG_FORMAT`                        | git log format                                | `%C(auto)%h%d %s %C(black)%C(bold)%cr%Creset` |
 | `FORGIT_PREVIEW_CONTEXT`    | lines of diff context in preview mode     | 3                                             |
 | `FORGIT_FULLSCREEN_CONTEXT` | lines of diff context in full-screen mode | 10                                            |
 | `FORGIT_DIR_VIEW`           | command used to preview directories       | `tree` if available, otherwise `find`         |
diff --git a/bin/git-forgit b/bin/git-forgit
index 3ae4e516..e2c5b42c 100755
--- a/bin/git-forgit
+++ b/bin/git-forgit
@@ -65,6 +65,15 @@ _forgit_emojify() {
     fi
 }
 
+_forgit_worktree_filter() {
+    if [[ "${FORGIT_CHECKOUT_BRANCH_EXCLUDE_WORKTREES:-true}" == "true" ]]; then
+        # Worktree branches are prefixed with '+' in 'git branch' output
+        grep -v '^[+]'
+    else
+        cat
+    fi
+}
+
 # extract the first git sha occurring in the input and strip trailing newline
 _forgit_extract_sha() {
     grep -Eo '[a-f0-9]+' | head -1 | tr -d '[:space:]'
@@ -879,7 +888,7 @@ _forgit_checkout_branch() {
         "
     _forgit_checkout_branch_branch_git_opts=()
     _forgit_parse_array _forgit_checkout_branch_branch_git_opts "$FORGIT_CHECKOUT_BRANCH_BRANCH_GIT_OPTS"
-    branch="$(git branch --color=always "${_forgit_checkout_branch_branch_git_opts[@]:---all}" | LC_ALL=C sort -k1.1,1.1 -rs |
+    branch="$(git branch --color=always "${_forgit_checkout_branch_branch_git_opts[@]:---all}" | _forgit_worktree_filter | LC_ALL=C sort -k1.1,1.1 -rs |
               FZF_DEFAULT_OPTS="$opts" fzf | awk '{print $1}')"
     [[ -z "$branch" ]] && return 1
 
diff --git a/tests/worktree_exclude.test.sh b/tests/worktree_exclude.test.sh
new file mode 100644
index 00000000..ef6f5821
--- /dev/null
+++ b/tests/worktree_exclude.test.sh
@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+
+function set_up() {
+    source bin/git-forgit
+}
+
+function test_forgit_worktree_filter_excludes_plus_lines_by_default() {
+    local input="+ worktree-branch
+* main-branch
+  other-branch"
+    
+    # Default behavior (true)
+    local actual
+    actual=$(echo "$input" | _forgit_worktree_filter)
+    local expected="* main-branch
+  other-branch"
+
+    assert_same "$expected" "$actual"
+}
+
+function test_forgit_worktree_filter_excludes_plus_lines_when_explicitly_enabled() {
+    export FORGIT_CHECKOUT_BRANCH_EXCLUDE_WORKTREES="true"
+    local input="+ worktree-branch
+* main-branch"
+    
+    local actual
+    actual=$(echo "$input" | _forgit_worktree_filter)
+    local expected="* main-branch"
+
+    assert_same "$expected" "$actual"
+    unset FORGIT_CHECKOUT_BRANCH_EXCLUDE_WORKTREES
+}
+
+function test_forgit_worktree_filter_includes_plus_lines_when_disabled() {
+    export FORGIT_CHECKOUT_BRANCH_EXCLUDE_WORKTREES="false"
+    local input="+ worktree-branch
+* main-branch"
+    
+    local actual
+    actual=$(echo "$input" | _forgit_worktree_filter)
+    local expected="+ worktree-branch
+* main-branch"
+
+    assert_same "$expected" "$actual"
+    unset FORGIT_CHECKOUT_BRANCH_EXCLUDE_WORKTREES
+}