diff --git a/include/sway/commands.h b/include/sway/commands.h
index 5210d3ba7..b77f49221 100644
--- a/include/sway/commands.h
+++ b/include/sway/commands.h
@@ -125,6 +125,7 @@ sway_cmd cmd_create_output;
 sway_cmd cmd_default_border;
 sway_cmd cmd_default_floating_border;
 sway_cmd cmd_default_orientation;
+sway_cmd cmd_env;
 sway_cmd cmd_exec;
 sway_cmd cmd_exec_always;
 sway_cmd cmd_exit;
diff --git a/sway/commands.c b/sway/commands.c
index c2c12ee65..b07a6a8cf 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -57,6 +57,7 @@ static const struct cmd_handler handlers[] = {
 	{ "client.urgent", cmd_client_urgent },
 	{ "default_border", cmd_default_border },
 	{ "default_floating_border", cmd_default_floating_border },
+	{ "env", cmd_env },
 	{ "exec", cmd_exec },
 	{ "exec_always", cmd_exec_always },
 	{ "floating_maximum_size", cmd_floating_maximum_size },
diff --git a/sway/commands/env.c b/sway/commands/env.c
new file mode 100644
index 000000000..2603f257a
--- /dev/null
+++ b/sway/commands/env.c
@@ -0,0 +1,14 @@
+#define _POSIX_C_SOURCE 200809L
+#include <stdlib.h>
+#include "sway/commands.h"
+
+struct cmd_results *cmd_env(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "env", EXPECTED_EQUAL_TO, 2))) {
+		return error;
+	}
+
+	setenv(argv[0], argv[1], 1);
+
+	return cmd_results_new(CMD_SUCCESS, NULL);
+}
diff --git a/sway/meson.build b/sway/meson.build
index 8042c89be..ea03e2ef0 100644
--- a/sway/meson.build
+++ b/sway/meson.build
@@ -52,6 +52,7 @@ sway_sources = files(
 	'commands/default_border.c',
 	'commands/default_floating_border.c',
 	'commands/default_orientation.c',
+	'commands/env.c',
 	'commands/exit.c',
 	'commands/exec.c',
 	'commands/exec_always.c',