diff --git a/COMMANDS.md b/COMMANDS.md
index 5d52e13f..203250d4 100644
--- a/COMMANDS.md
+++ b/COMMANDS.md
@@ -386,11 +386,12 @@ List existing pyenv shims.
 
 Configure the shell environment for pyenv
 
-    Usage: eval "$(pyenv init [-|--path] [--no-rehash] [<shell>])"
+    Usage: eval "$(pyenv init [-|--path] [--no-push-path] [--no-rehash] [<shell>])"
 
       -                    Initialize shims directory, print PYENV_SHELL variable, completions path
                            and shell function
       --path               Print shims path
+      --no-push-path       Do not push shim to the start of PATH if they're already there
       --no-rehash          Add no rehash command to output     
 
 ## `pyenv completions`
diff --git a/libexec/pyenv-init b/libexec/pyenv-init
index 24ef3b16..7d222377 100755
--- a/libexec/pyenv-init
+++ b/libexec/pyenv-init
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # Summary: Configure the shell environment for pyenv
-# Usage: eval "$(pyenv init [-|--path] [--no-rehash] [<shell>])"
+# Usage: eval "$(pyenv init [-|--path] [--no-push-path] [--no-rehash] [<shell>])"
 
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
@@ -9,6 +9,7 @@ set -e
 if [ "$1" = "--complete" ]; then
   echo -
   echo --path
+  echo --no-push-path
   echo --no-rehash
   echo bash
   echo fish
@@ -19,6 +20,7 @@ fi
 
 mode="help"
 no_rehash=""
+no_push_path=""
 for args in "$@"
 do
   if [ "$args" = "-" ]; then
@@ -30,6 +32,11 @@ do
     mode="path"
     shift
   fi
+
+  if [ "$args" = "--no-push-path" ]; then
+    no_push_path=1
+    shift
+  fi
   
   if [ "$args" = "--no-rehash" ]; then
     no_rehash=1
@@ -141,28 +148,56 @@ function init_dirs() {
 }
 
 function print_path() {
-  case "$shell" in
-    fish )
-      echo 'while set index (contains -i -- '\'"${PYENV_ROOT}/shims"\'' $PATH)'
-      echo 'set -eg PATH[$index]; end; set -e index'
-      echo 'set -gx PATH '\'"${PYENV_ROOT}/shims"\'' $PATH'
-      ;;
-    * )
-      # Some distros (notably Debian-based) set Bash's SSH_SOURCE_BASHRC compilation option
-      # that makes it source `bashrc` under SSH even when not interactive.
-      # This is inhibited by a guard in Debian's stock `bashrc` but some people remove it
-      # in order to get proper environment for noninteractive remote commands
-      # (SSH provides /etc/ssh/sshrc and ~/.ssh/rc for that but no-one seems to use them for some reason).
-      # This has caused an infinite `bashrc` execution loop for those people in the below nested Bash invocation (#2367).
-      # --norc negates this behavior of such a customized Bash.
-      echo 'PATH="$(bash --norc -ec '\''IFS=:; paths=($PATH); '
-      echo 'for i in ${!paths[@]}; do '
-      echo 'if [[ ${paths[i]} == "'\'\'"${PYENV_ROOT}/shims"\'\''" ]]; then unset '\'\\\'\''paths[i]'\'\\\'\''; '
-      echo 'fi; done; '
-      echo 'echo "${paths[*]}"'\'')"'
-      echo 'export PATH="'"${PYENV_ROOT}"'/shims:${PATH}"'
-      ;;
-  esac
+  # if no_push_path is set, guard the PATH manipulation with a check on whether
+  # the shim is already in the PATH.
+  if [ -n "$no_push_path" ]; then
+    case "$shell" in
+      fish )
+          echo 'if not contains -- "'"${PYENV_ROOT}/shims"'" $PATH'
+          print_path_prepend_shims
+          echo 'end'
+          ;;
+      * )
+          echo 'if [[ ":$PATH:" != *'\':"${PYENV_ROOT}"/shims:\''* ]]; then'
+          print_path_prepend_shims
+          echo 'fi'
+          ;;
+    esac
+  else
+    case "$shell" in
+      fish )
+        echo 'while set pyenv_index (contains -i -- "'"${PYENV_ROOT}/shims"'" $PATH)'
+        echo 'set -eg PATH[$pyenv_index]; end; set -e pyenv_index'
+        print_path_prepend_shims
+        ;;
+      * )
+        # Some distros (notably Debian-based) set Bash's SSH_SOURCE_BASHRC compilation option
+        # that makes it source `bashrc` under SSH even when not interactive.
+        # This is inhibited by a guard in Debian's stock `bashrc` but some people remove it
+        # in order to get proper environment for noninteractive remote commands
+        # (SSH provides /etc/ssh/sshrc and ~/.ssh/rc for that but no-one seems to use them for some reason).
+        # This has caused an infinite `bashrc` execution loop for those people in the below nested Bash invocation (#2367).
+        # --norc negates this behavior of such a customized Bash.
+        echo 'PATH="$(bash --norc -ec '\''IFS=:; paths=($PATH); '
+        echo 'for i in ${!paths[@]}; do '
+        echo 'if [[ ${paths[i]} == "'\'\'"${PYENV_ROOT}/shims"\'\''" ]]; then unset '\'\\\'\''paths[i]'\'\\\'\''; '
+        echo 'fi; done; '
+        echo 'echo "${paths[*]}"'\'')"'
+        print_path_prepend_shims
+        ;;
+    esac
+  fi
+}
+
+function print_path_prepend_shims() {
+    case "$shell" in
+      fish )
+          echo 'set -gx PATH '\'"${PYENV_ROOT}/shims"\'' $PATH'
+          ;;
+      * )
+          echo 'export PATH="'"${PYENV_ROOT}"'/shims:${PATH}"'
+          ;;
+    esac
 }
 
 function print_env() {
diff --git a/test/init.bats b/test/init.bats
index 154d340b..bfe253e3 100755
--- a/test/init.bats
+++ b/test/init.bats
@@ -98,7 +98,6 @@ echo "\$PATH"
   command -v fish >/dev/null || skip "-- fish not installed"
   OLDPATH="$PATH"
   export PATH="${BATS_TEST_DIRNAME}/nonexistent:${PYENV_ROOT}/shims:$PATH"
-  # fish 2 (Ubuntu Bionic) adds spurious messages when setting PATH, messing up the output
   run fish <<!
 set -x PATH "$PATH"
 pyenv init - | source
@@ -108,6 +107,50 @@ echo "\$PATH"
   assert_output "${PYENV_ROOT}/shims:${BATS_TEST_DIRNAME}/nonexistent:${OLDPATH//${PYENV_ROOT}\/shims:/}"
 }
 
+@test "adds shims to PATH with --no-push-path if they're not on PATH" {
+  export PATH="${BATS_TEST_DIRNAME}/../libexec:/usr/bin:/bin:/usr/local/bin"
+  run bash -e <<!
+eval "\$(pyenv-init - --no-push-path)"
+echo "\$PATH"
+!
+  assert_success
+  assert_output "${PYENV_ROOT}/shims:${PATH}"
+}
+
+@test "adds shims to PATH with --no-push-path if they're not on PATH (fish)" {
+  command -v fish >/dev/null || skip "-- fish not installed"
+  export PATH="${BATS_TEST_DIRNAME}/../libexec:/usr/bin:/bin:/usr/local/bin"
+  run fish <<!
+set -x PATH "$PATH"
+pyenv-init - --no-push-path| source
+echo "\$PATH"
+!
+  assert_success
+  assert_output "${PYENV_ROOT}/shims:${PATH}"
+}
+
+@test "doesn't change PATH with --no-push-path if shims are already on PATH" {
+  export PATH="${BATS_TEST_DIRNAME}/../libexec:${PYENV_ROOT}/shims:/usr/bin:/bin:/usr/local/bin"
+  run bash -e <<!
+eval "\$(pyenv-init - --no-push-path)"
+echo "\$PATH"
+!
+  assert_success
+  assert_output "${PATH}"
+}
+
+@test "doesn't change PATH with --no-push-path if shims are already on PATH (fish)" {
+  command -v fish >/dev/null || skip "-- fish not installed"
+  export PATH="${BATS_TEST_DIRNAME}/../libexec:/usr/bin:${PYENV_ROOT}/shims:/bin:/usr/local/bin"
+  run fish <<!
+set -x PATH "$PATH"
+pyenv-init - --no-push-path| source
+echo "\$PATH"
+!
+  assert_success
+  assert_output "${PATH}"
+}
+
 @test "outputs sh-compatible syntax" {
   run pyenv-init - bash
   assert_success