diff --git a/cmd/env.go b/cmd/env.go
new file mode 100644
index 0000000..9a297da
--- /dev/null
+++ b/cmd/env.go
@@ -0,0 +1,114 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/olekukonko/tablewriter"
+	"github.com/spf13/cobra"
+)
+
+// envCmd represents the env command group
+var envCmd = &cobra.Command{
+	Use:   "env",
+	Short: "Manage environment variables",
+	Long: `Manage environment variables for your account.
+
+Environment variables are injected into VMs at boot.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		cmd.Help()
+	},
+}
+
+// envListCmd lists all environment variables
+var envListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List all environment variables",
+	Long: `List all environment variables on the account.
+
+Examples:
+  irons env list`,
+	Args: cobra.NoArgs,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		client := newClient()
+
+		resp, err := client.EnvVarList()
+		if err != nil {
+			return fmt.Errorf("listing env vars: %w", err)
+		}
+
+		if len(resp.Data) == 0 {
+			fmt.Println("No environment variables found.")
+			return nil
+		}
+
+		table := tablewriter.NewTable(os.Stdout)
+		table.Header([]string{"Key", "Value", "Updated"})
+		for _, e := range resp.Data {
+			table.Append([]string{e.Key, e.Value, e.UpdatedAt})
+		}
+		table.Render()
+
+		return nil
+	},
+}
+
+// envSetCmd sets an environment variable
+var envSetCmd = &cobra.Command{
+	Use:   "set KEY=VALUE",
+	Short: "Set an environment variable",
+	Long: `Set (create or update) an environment variable.
+
+Examples:
+  irons env set FOO=BAR
+  irons env set DATABASE_URL=postgres://localhost/mydb`,
+	Args: cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		key, value, ok := strings.Cut(args[0], "=")
+		if !ok || key == "" {
+			return fmt.Errorf("expected KEY=VALUE format (e.g. FOO=BAR)")
+		}
+
+		client := newClient()
+
+		ev, err := client.EnvVarPut(key, value)
+		if err != nil {
+			return fmt.Errorf("setting env var: %w", err)
+		}
+
+		fmt.Printf("Set %s=%s\n", ev.Key, ev.Value)
+		return nil
+	},
+}
+
+// envDestroyCmd deletes an environment variable
+var envDestroyCmd = &cobra.Command{
+	Use:   "destroy KEY",
+	Short: "Delete an environment variable",
+	Long: `Delete an environment variable by key.
+
+Examples:
+  irons env destroy FOO`,
+	Args: cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		key := args[0]
+
+		client := newClient()
+
+		if err := client.EnvVarDelete(key); err != nil {
+			return fmt.Errorf("deleting env var: %w", err)
+		}
+
+		fmt.Printf("Deleted %s.\n", key)
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(envCmd)
+
+	envCmd.AddCommand(envListCmd)
+	envCmd.AddCommand(envSetCmd)
+	envCmd.AddCommand(envDestroyCmd)
+}