diff --git a/completions/fish/sway.fish b/completions/fish/sway.fish
new file mode 100644
index 00000000..31165ef4
--- /dev/null
+++ b/completions/fish/sway.fish
@@ -0,0 +1,10 @@
+# sway(1) completion
+
+complete -c sway -s h -l help --description "Show help message and quit."
+complete -c sway -s c -l config --description "Specifies a config file."
+complete -c sway -s C -l validate --description "Check the validity of the config file, then exit."
+complete -c sway -s d -l debug --description "Enables full logging, including debug information."
+complete -c sway -s v -l version --description "Show the version number and quit."
+complete -c sway -s V -l verbose --description "Enables more verbose logging."
+complete -c sway -l get-socketpath --description "Gets the IPC socket path and prints it, then exits."
+
diff --git a/completions/fish/swaylock.fish b/completions/fish/swaylock.fish
new file mode 100644
index 00000000..965a22d2
--- /dev/null
+++ b/completions/fish/swaylock.fish
@@ -0,0 +1,11 @@
+# swaylock(1) completion
+
+complete -c swaylock -s h -l help --description "Show help message and quit."
+complete -c swaylock -s c -l color --description "Turn the screen into the given color. If -i is used, this sets the background of the image into the given color. Defaults to white (ffffff), or transparent (00000000) if an image is in use."
+complete -c swaylock -s f -l daemonize --description "Fork into the background after spawning. Note: this is the default bahavior of i3lock."
+complete -c swaylock -s i -l image --description "Display the given image, optionally on the given output. Use -c to set a background color."
+complete -c swaylock -l scaling --description "Scaling mode for images: stretch, fill, fit, center, or tile."
+complete -c swaylock -s t -l tiling --description "Same as --scaling=tile."
+complete -c swaylock -s u -l no-unlock-indicator --description "Disable the unlock indicator."
+complete -c swaylock -s v -l version --description "Show the version number and quit."
+complete -c swaylock -l socket --description "Use the specified socket path. Othherwise, swaymsg will as sway where the socket is (which is the value of $SWAYSOCK, then of $I350CK)."
diff --git a/completions/fish/swaymsg.fish b/completions/fish/swaymsg.fish
new file mode 100644
index 00000000..e798db77
--- /dev/null
+++ b/completions/fish/swaymsg.fish
@@ -0,0 +1,8 @@
+# swaymsg(1) completion
+
+complete -c swaymsg -s h -l help --description "Show help message and quit."
+complete -c swaymsg -s q -l quiet --description "Sends the IPC message but does not print the response from sway."
+complete -c swaymsg -s r -l raw --description "Use raw output even if using tty."
+complete -c swaymsg -s s -l socket --description "Use the specified socket path. Otherwise, swaymsg will ask where the socket is (which is the value of $SWAYSOCK, then of $I3SOCK)."
+complete -c swaymsg -s t -l type --description "Specify the type of IPC message."
+complete -c swaymsg -s v -l version --description "Print the version (of swaymsg) and quit."
diff --git a/meson.build b/meson.build
index 2a020323..0e4b4f21 100644
--- a/meson.build
+++ b/meson.build
@@ -205,3 +205,14 @@ if (get_option('bash_completions'))
 
 	install_data(bash_files, install_dir: bash_install_dir)
 endif
+
+if (get_option('fish_completions'))
+	fish_files = files(
+		'completions/fish/sway.fish',
+		'completions/fish/swaylock.fish',
+		'completions/fish/swaymsg.fish',
+	)
+	fish_install_dir = datadir + '/fish/completions'
+
+	install_data(fish_files, install_dir: fish_install_dir)
+endif
diff --git a/meson_options.txt b/meson_options.txt
index 7a23c206..5e54607f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -2,4 +2,5 @@ option('sway_version', type : 'string', description: 'The version string reporte
 option('default_wallpaper', type: 'boolean', value: true, description: 'Install the default wallpaper.')
 option('zsh_completions', type: 'boolean', value: true, description: 'Install zsh shell completions.')
 option('bash_completions', type: 'boolean', value: true, description: 'Install bash shell completions.')
+option('fish_completions', type: 'boolean', value: true, description: 'Install fish shell completions.')
 option('enable-xwayland', type: 'boolean', value: true, description: 'Enable support for X11 applications')