diff --git a/src/ambient.d.ts b/src/ambient.d.ts
index 442cf55..05afb5e 100644
--- a/src/ambient.d.ts
+++ b/src/ambient.d.ts
@@ -63,6 +63,7 @@ type Config = {
     security: {
         passwordStrength: number;
     };
+    defaultGroup?: string | null;
 };
 
 type Option = {
diff --git a/src/lib/components/admin/SettingsForm/DefaultGroup.svelte b/src/lib/components/admin/SettingsForm/DefaultGroup.svelte
new file mode 100644
index 0000000..fe8f729
--- /dev/null
+++ b/src/lib/components/admin/SettingsForm/DefaultGroup.svelte
@@ -0,0 +1,24 @@
+<script lang="ts">
+    import BaseSetting from "./BaseSetting.svelte";
+
+    type Group = {
+        id: string;
+        name: string;
+    };
+
+    interface Props {
+        groupId?: string | null;
+        groups: Group[];
+    }
+
+    let { groupId = $bindable(), groups = [] }: Props = $props();
+</script>
+
+<BaseSetting title="Default group">
+    <select id="defaultGroup" name="defaultGroup" class="select w-fit min-w-64" bind:value={groupId}>
+        <option value="">Select a group</option>
+        {#each groups as group}
+            <option value={group.id}>{group.name}</option>
+        {/each}
+    </select>
+</BaseSetting>
diff --git a/src/lib/components/admin/SettingsForm/index.svelte b/src/lib/components/admin/SettingsForm/index.svelte
index 9e9d847..6aaf1f5 100644
--- a/src/lib/components/admin/SettingsForm/index.svelte
+++ b/src/lib/components/admin/SettingsForm/index.svelte
@@ -3,19 +3,33 @@
     import { ProgressRadial } from "@skeletonlabs/skeleton";
     import PublicSignup from "./PublicSignup.svelte";
     import Suggestions from "./Suggestions.svelte";
-    import Smtp from "./SMTP.svelte";
     import Claims from "./Claims.svelte";
     import Security from "./Security.svelte";
+    import DefaultGroup from "./DefaultGroup.svelte";
+    import Smtp from "./SMTP.svelte";
+
+    type Group = {
+        id: string;
+        name: string;
+    };
 
     interface Props {
         config: Config;
+        groups: Group[];
         hideActions?: boolean;
         saved?: boolean;
         sending?: boolean;
         sent?: boolean;
     }
 
-    let { config = $bindable(), hideActions = false, saved = false, sending = false, sent = false }: Props = $props();
+    let {
+        config = $bindable(),
+        groups = [],
+        hideActions = false,
+        saved = false,
+        sending = false,
+        sent = false
+    }: Props = $props();
 
     let form = $derived($page.form);
 </script>
@@ -34,6 +48,9 @@
     <div class="col-span-1">
         <Security bind:passwordStrength={config.security.passwordStrength} />
     </div>
+    <div class="col-span-1">
+        <DefaultGroup {groups} bind:groupId={config.defaultGroup} />
+    </div>
 
     <div class="col-span-1 md:col-span-2">
         <Smtp
diff --git a/src/lib/server/config.ts b/src/lib/server/config.ts
index 09c34e5..75fe0fb 100644
--- a/src/lib/server/config.ts
+++ b/src/lib/server/config.ts
@@ -15,7 +15,8 @@ enum ConfigKey {
     SMTP_FROM_NAME = "smtp.fromName",
     CLAIMS_SHOW_NAME = "claims.showName",
     LIST_MODE = "listMode",
-    SECURITY_PASSWORD_STRENGTH = "security.passwordStrength"
+    SECURITY_PASSWORD_STRENGTH = "security.passwordStrength",
+    DEFAULT_GROUP = "defaultGroup"
 }
 
 export const getConfig = async (groupId?: string, includeSensitive = false): Promise<Config> => {
@@ -79,7 +80,8 @@ export const getConfig = async (groupId?: string, includeSensitive = false): Pro
         listMode: (configMap[ConfigKey.LIST_MODE] as ListMode) || "standard",
         security: {
             passwordStrength: Number(configMap[ConfigKey.SECURITY_PASSWORD_STRENGTH] || 2)
-        }
+        },
+        defaultGroup: configMap[ConfigKey.DEFAULT_GROUP]!
     };
 
     return config;
@@ -141,6 +143,7 @@ export const writeConfig = async (config: Partial<Config>, groupId = GLOBAL) =>
     configMap[ConfigKey.CLAIMS_SHOW_NAME] = config?.claims?.showName.toString();
     configMap[ConfigKey.LIST_MODE] = config?.listMode;
     configMap[ConfigKey.SECURITY_PASSWORD_STRENGTH] = config?.security?.passwordStrength.toString();
+    configMap[ConfigKey.DEFAULT_GROUP] = config?.defaultGroup;
 
     for (const [key, value] of Object.entries(configMap)) {
         await client.systemConfig.upsert({
diff --git a/src/lib/validations.ts b/src/lib/validations.ts
index f51d423..4b37218 100644
--- a/src/lib/validations.ts
+++ b/src/lib/validations.ts
@@ -52,7 +52,8 @@ export const settingSchema = z.object({
     smtpFromName: z.string().optional(),
     claimsShowName: z.coerce.boolean().default(false),
     listMode: z.enum(["standard", "registry"]).default("standard"),
-    passwordStrength: z.coerce.number().min(-1).max(5).default(2)
+    passwordStrength: z.coerce.number().min(-1).max(5).default(2),
+    defaultGroup: z.string().optional()
 });
 
 export const publicListCreateSchema = z.object({
diff --git a/src/routes/admin/groups/[groupId]/members/+page.svelte b/src/routes/admin/groups/[groupId]/members/+page.svelte
index 27d8cbf..47afce0 100644
--- a/src/routes/admin/groups/[groupId]/members/+page.svelte
+++ b/src/routes/admin/groups/[groupId]/members/+page.svelte
@@ -65,6 +65,14 @@
     };
 
     const deleteGroup = () => {
+        if (data.config.defaultGroup === $page.params.groupId) {
+            modalStore.trigger({
+                type: "alert",
+                title: "Cannot Delete Default Group",
+                body: "You cannot delete the default group. Please change the default group before deleting this group."
+            });
+            return;
+        }
         modalStore.trigger({
             type: "confirm",
             title: "Delete Group",
diff --git a/src/routes/admin/settings/+page.server.ts b/src/routes/admin/settings/+page.server.ts
index 0d29397..8152c59 100644
--- a/src/routes/admin/settings/+page.server.ts
+++ b/src/routes/admin/settings/+page.server.ts
@@ -1,4 +1,5 @@
 import { Role } from "$lib/schema";
+import { client } from "$lib/server/prisma";
 import { getConfig, writeConfig } from "$lib/server/config";
 import { redirect, error, fail, type Actions } from "@sveltejs/kit";
 import type { PageServerLoad } from "./$types";
@@ -16,8 +17,16 @@ export const load: PageServerLoad = async ({ locals }) => {
 
     const config = await getConfig(undefined, true);
 
+    const groups = await client.group.findMany({
+        select: {
+            id: true,
+            name: true
+        }
+    });
+
     return {
-        config
+        config,
+        groups
     };
 };
 
@@ -82,7 +91,8 @@ const generateConfig = (configData: z.infer<typeof settingSchema>) => {
         listMode: "standard",
         security: {
             passwordStrength: configData.passwordStrength
-        }
+        },
+        defaultGroup: configData.defaultGroup
     };
 
     return newConfig;
diff --git a/src/routes/admin/settings/+page.svelte b/src/routes/admin/settings/+page.svelte
index cfbf8f5..032d92d 100644
--- a/src/routes/admin/settings/+page.svelte
+++ b/src/routes/admin/settings/+page.svelte
@@ -11,6 +11,7 @@
     let { data }: Props = $props();
 
     let config = $state(data.config);
+    let groups = $state(data.groups);
     let sending = $state(false);
     let saved = $state(false);
     let sent = $state(false);
@@ -36,5 +37,5 @@
         };
     }}
 >
-    <SettingsForm {config} {saved} {sending} {sent} />
+    <SettingsForm {config} {groups} {saved} {sending} {sent} />
 </form>
diff --git a/src/routes/setup-wizard/step/[step]/GlobalSettingsStep.svelte b/src/routes/setup-wizard/step/[step]/GlobalSettingsStep.svelte
index 30eddf4..173dc22 100644
--- a/src/routes/setup-wizard/step/[step]/GlobalSettingsStep.svelte
+++ b/src/routes/setup-wizard/step/[step]/GlobalSettingsStep.svelte
@@ -5,10 +5,12 @@
     import { getContext } from "svelte";
     import type { Writable } from "svelte/store";
     import type { Props } from "./steps";
+    import type { Group } from "@prisma/client";
 
     let { onSuccess }: Props = $props();
 
     let config: Config = $state($page.data.config);
+    let groups: Group[] = $state($page.data.groups);
     let form: HTMLFormElement | undefined = $state();
     let sending = $state(false);
     let saved = $state(false);
@@ -51,7 +53,7 @@
                 };
             }}
         >
-            <SettingsForm {config} hideActions {saved} {sending} {sent} />
+            <SettingsForm {config} {groups} hideActions {saved} {sending} {sent} />
         </form>
     </div>
 </div>
diff --git a/src/routes/signup/+page.server.ts b/src/routes/signup/+page.server.ts
index 8f6aa1f..8efda30 100644
--- a/src/routes/signup/+page.server.ts
+++ b/src/routes/signup/+page.server.ts
@@ -43,6 +43,7 @@ export const load: PageServerLoad = async ({ locals, request }) => {
 
 export const actions: Actions = {
     default: async ({ request, cookies }) => {
+        const config = await getConfig();
         const formData = Object.fromEntries(await request.formData());
         const signupSchema = await getSignupSchema();
         const signupData = signupSchema.safeParse(formData);
@@ -79,6 +80,8 @@ export const actions: Actions = {
                     }
                 })
             )?.id;
+        } else if (config.defaultGroup) {
+            groupId = config.defaultGroup;
         }
 
         try {