diff --git a/contrib/zsh-completion/README.md b/contrib/zsh-completion/README.md
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index 000000000..c77df5d6a
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+++ b/contrib/zsh-completion/README.md
@@ -0,0 +1,5 @@
+# Terraform zsh completion
+
+```bash
+./install.sh
+```
\ No newline at end of file
diff --git a/contrib/zsh-completion/_terraform b/contrib/zsh-completion/_terraform
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+++ b/contrib/zsh-completion/_terraform
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+#compdef terraform
+
+local -a _terraform_cmds
+_terraform_cmds=(
+    'apply:Builds or changes infrastructure'
+    'destroy:Destroy Terraform-managed infrastructure'
+    'get:Download and install modules for the configuration'
+    'graph:Create a visual graph of Terraform resources'
+    'init:Initializes Terraform configuration from a module'
+    'output:Read an output from a state file'
+    'plan:Generate and show an execution plan'
+    'pull:Refreshes the local state copy from the remote server'
+    'push:Uploads the the local state to the remote server'
+    'refresh:Update local state file against real resources'
+    'remote:Configures remote state management'
+    'show:Inspect Terraform state or plan'
+    'version:Prints the Terraform version'
+)
+
+__apply() {
+    _arguments \
+        '-backup=[(path) Path to backup the existing state file before modifying. Defaults to the "-state-out" path with ".backup" extension. Set to "-" to disable backup.]' \
+        '-input=[(true) Ask for input for variables if not directly set.]' \
+        '-no-color[If specified, output will not contain any color.]' \
+        '-refresh=[(true) Update state prior to checking for differences. This has no effect if a plan file is given to apply.]' \
+        '-state=[(path) Path to read and save state (unless state-out is specified). Defaults to "terraform.tfstate".]' \
+        '-state-out=[(path) Path to write state to that is different than "-state". This can be used to preserve the old state.]' \
+        '-var[("foo=bar") Set a variable in the Terraform configuration. This flag can be set multiple times.]' \
+        '-var-file=[(path) Set variables in the Terraform configuration from a file. If "terraform.tfvars" is present, it will be automatically loaded if this flag is not specified.]'
+}
+
+__destroy() {
+    _arguments \
+        '-backup=[(path) Path to backup the existing state file before modifying. Defaults to the "-state-out" path with ".backup" extension. Set to "-" to disable backup.]' \
+        '-force[Do not ask for input for destroy confirmation.]' \
+        '-no-color[If specified, output will not contain any color.]' \
+        '-refresh=[(true) Update state prior to checking for differences. This has no effect if a plan file is given to apply.]' \
+        '-state=[Path to read and save state (unless state-out is specified). Defaults to "terraform.tfstate".]' \
+        '-state-out=[Path to write state to that is different than "-state". This can be used to preserve the old state.]' \
+        '-var[("foo=bar") Set a variable in the Terraform configuration. This flag can be set multiple times.]' \
+        '-var-file=[(path) Set variables in the Terraform configuration from a file. If "terraform.tfvars" is present, it will be automatically loaded if this flag is not specified.]'
+}
+
+__get() {
+    _arguments \
+        '-update=[(false) If true, modules already downloaded will be checked for updates and updated if necessary.]'
+}
+
+__graph() {
+    _arguments \
+        '-module-depth=[(n) The maximum depth to expand modules. By default this is zero, which will not expand modules at all.]'
+}
+
+__init() {
+    _arguments \
+        '-address=[(url) URL of the remote storage server. Required for HTTP backend, optional for Atlas and Consul.]' \
+        '-access-token=[(token) Authentication token for state storage server. Required for Atlas backend, optional for Consul.]' \
+        '-backend=[(atlas) Specifies the type of remote backend. Must be one of Atlas, Consul, or HTTP. Defaults to atlas.]' \
+        '-name=[(name) Name of the state file in the state storage server. Required for Atlas backend.]' \
+        '-path=[(path) Path of the remote state in Consul. Required for the Consul backend.]'
+}
+
+__output() {
+    _arguments \
+        '-state=[(path) Path to the state file to read. Defaults to "terraform.tfstate".]'
+}
+
+__plan() {
+    _arguments \
+        '-backup=[(path) Path to backup the existing state file before modifying. Defaults to the "-state-out" path with" .backup" extension. Set to "-" to disable backup.]' \
+        '-destroy[If set, a plan will be generated to destroy all resources managed by the given configuration and state.]' \
+        '-input=[(true) Ask for input for variables if not directly set.]' \
+        '-module-depth=[(n) Specifies the depth of modules to show in the output. This does not affect the plan itself, only the output shown. By default, this is zero. -1 will expand all.]' \
+        '-no-color[If specified, output will not contain any color.]' \
+        '-out=[(path) Write a plan file to the given path. This can be used as input to the "apply" command.]' \
+        '-refresh=[(true) Update state prior to checking for differences.]' \
+        '-state=[(statefile) Path to a Terraform state file to use to look up Terraform-managed resources. By default it will use the state "terraform.tfstate" if it exists.]' \
+        '-var[("foo=bar") Set a variable in the Terraform configuration. This flag can be set multiple times.]' \
+        '-var-file=[(path) Set variables in the Terraform configuration from a file. If "terraform.tfvars" is present, it will be automatically loaded if this flag is not specified.]'
+}
+
+__push() {
+    _arguments \
+        '-force[Forces the upload of the local state, ignoring any conflits. This should be used carefully, as force pushing can cause remote state information to be lost.]'
+}
+
+__refresh() {
+    _arguments \
+        '-backup=[(path) Path to backup the existing state file before modifying. Defaults to the "-state-out" path with ".backup" extension. Set to "-" to disable backup.]' \
+        '-input=[(true)  Ask for input for variables if not directly set.]' \
+        '-no-color[If specified, output will not contain any color.]' \
+        '-state=[(path) Path to read and save state (unless state-out is specified). Defaults to "terraform.tfstate".]' \
+        '-state-out=[(path) Path to write state to that is different than "-state". This can be used to preserve the old state.]' \
+        '-var[("foo=bar") Set a variable in the Terraform configuration. This flag can be set multiple times.]' \
+        '-var-file=[(path) Set variables in the Terraform configuration from a file. If "terraform.tfvars" is present, it will be automatically loaded if this flag is not specified.]'
+}
+
+__remote() {
+    _arguments \
+        '-address=[(url) URL of the remote storage server. Required for HTTP backend, optional for Atlas and Consul.]' \
+        '-access-token=[(token) Authentication token for state storage server. Required for Atlas backend, optional for Consul.]' \
+        '-backend=[(atlas) Specifies the type of remote backend. Must be one of Atlas, Consul, or HTTP. Defaults to atlas.]' \
+        '-backup=[(path) Path to backup the existing state file before modifying. Defaults to the "-state-out" path with ".backup" extension. Set to "-" to disable backup.]' \
+        '-disable[Disables remote state management and migrates the state to the -state path.]' \
+        '-name=[(name) Name of the state file in the state storage server. Required for Atlas backend.]' \
+        '-path=[(path) Path of the remote state in Consul. Required for the Consul backend.]' \
+        '-pull=[(true) Controls if the remote state is pulled before disabling. This defaults to true to ensure the latest state is cached before disabling.]'\
+        '-state=[(path) Path to read and save state (unless state-out is specified). Defaults to "terraform.tfstate".]'
+}
+
+__show() {
+    _arguments \
+        '-module-depth=[(n) The maximum depth to expand modules. By default this is zero, which will not expand modules at all.]' \
+        '-no-color[If specified, output will not contain any color.]'
+}
+
+_arguments '*:: :->command'
+
+if (( CURRENT == 1 )); then
+  _describe -t commands "terraform command" _terraform_cmds
+  return
+fi
+
+local -a _command_args
+case "$words[1]" in
+  apply)
+    __apply ;;
+  destroy)
+    __destroy ;;
+  get)
+    __get ;;
+  graph)
+    __graph ;;
+  init)
+    __init ;;
+  output)
+    __output ;;
+  plan)
+    __plan ;;
+  push)
+    __push ;;
+  refresh)
+    __refresh ;;
+  remote)
+    __remote ;;
+  show)
+    __show ;;
+esac
diff --git a/contrib/zsh-completion/install.sh b/contrib/zsh-completion/install.sh
new file mode 100755
index 000000000..30855a320
--- /dev/null
+++ b/contrib/zsh-completion/install.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+
+ZSH_FUNC_DIR="/usr/share/zsh/site-functions"
+
+if [ -d "$ZSH_FUNC_DIR" ]; then
+    echo "Installing into ${ZSH_FUNC_DIR}..."
+    sudo cp ./_terraform "$ZSH_FUNC_DIR"
+    echo "Installed! Make sure that ${ZSH_FUNC_DIR} is in your \$fpath."
+else
+    echo "Could not find ${ZSH_FUNC_DIR}. Please install manually."
+    exit 1
+fi