diff --git a/src/app/(private)/map/[id]/components/PrivateMapNavbar.tsx b/src/app/(private)/map/[id]/components/PrivateMapNavbar.tsx
index aaaabf07..81159aac 100644
--- a/src/app/(private)/map/[id]/components/PrivateMapNavbar.tsx
+++ b/src/app/(private)/map/[id]/components/PrivateMapNavbar.tsx
@@ -26,6 +26,7 @@ import { useMapId, useMapRef } from "../hooks/useMapCore";
 import { useMapViews } from "../hooks/useMapViews";
 import MapViews from "./MapViews";
 import PrivateMapNavbarControls from "./PrivateMapNavbarControls";
+import ShareMapDialog from "./ShareMapDialog";
 
 export default function PrivateMapNavbar() {
   const mapId = useMapId();
@@ -39,6 +40,10 @@ export default function PrivateMapNavbar() {
     Feature.PublicMaps,
     currentOrganisation?.features,
   );
+  const showShareButton = useFeatureFlagEnabled(
+    Feature.SharedMaps,
+    currentOrganisation?.features,
+  );
   const [isEditingName, setIsEditingName] = useState(false);
   const [editedName, setEditedName] = useState(map?.name || "");
 
@@ -220,6 +225,8 @@ export default function PrivateMapNavbar() {
         <div className="flex items-center gap-4">
           <SearchBox />
 
+          {showShareButton && mapId && <ShareMapDialog mapId={mapId} />}
+
           {showPublishButton && mapId && view && (
             <MapModeToggle mode="private" />
           )}
diff --git a/src/app/(private)/map/[id]/components/ShareMapDialog.tsx b/src/app/(private)/map/[id]/components/ShareMapDialog.tsx
new file mode 100644
index 00000000..8330efe5
--- /dev/null
+++ b/src/app/(private)/map/[id]/components/ShareMapDialog.tsx
@@ -0,0 +1,252 @@
+"use client";
+
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { CopyIcon, Share2Icon } from "lucide-react";
+import { useState } from "react";
+import { toast } from "sonner";
+import { useTRPC } from "@/services/trpc/react";
+import { Button } from "@/shadcn/ui/button";
+import { Input } from "@/shadcn/ui/input";
+import { Popover, PopoverContent, PopoverTrigger } from "@/shadcn/ui/popover";
+import { Switch } from "@/shadcn/ui/switch";
+import type { RouterOutputs } from "@/services/trpc/react";
+
+type ShareState = RouterOutputs["mapShare"]["get"];
+
+// Matches the server's passwordSchema
+const MIN_PASSWORD_LENGTH = 8;
+
+/**
+ * The Share button + popover in the private map navbar: enable/disable
+ * the read-only link, set an optional password, copy the link, and reset
+ * it. Distinct from Publish mode, which builds a public campaign site —
+ * this shares the live private map view with a small audience.
+ */
+export default function ShareMapDialog({ mapId }: { mapId: string }) {
+  const trpc = useTRPC();
+  const queryClient = useQueryClient();
+
+  const { data: share, isPending: shareLoading } = useQuery(
+    trpc.mapShare.get.queryOptions({ mapId }),
+  );
+
+  const [passwordEditing, setPasswordEditing] = useState(false);
+  const [password, setPassword] = useState("");
+  const [passwordError, setPasswordError] = useState<string | null>(null);
+
+  const updateShareCache = (data: ShareState) =>
+    queryClient.setQueryData(trpc.mapShare.get.queryKey({ mapId }), data);
+
+  const { mutate: enableShare, isPending: enabling } = useMutation(
+    trpc.mapShare.enable.mutationOptions({
+      onSuccess: (data) => updateShareCache(data),
+      onError: () => toast.error("Failed to enable link sharing"),
+    }),
+  );
+  const { mutate: disableShare, isPending: disabling } = useMutation(
+    trpc.mapShare.disable.mutationOptions({
+      onSuccess: (data) => updateShareCache(data),
+      onError: () => toast.error("Failed to disable link sharing"),
+    }),
+  );
+  const { mutate: setSharePassword, isPending: settingPassword } = useMutation(
+    trpc.mapShare.setPassword.mutationOptions({
+      onSuccess: (data, variables) => {
+        updateShareCache(data);
+        setPasswordEditing(false);
+        setPassword("");
+        toast.success(variables.password ? "Password set" : "Password removed");
+      },
+      onError: () => toast.error("Failed to update the password"),
+    }),
+  );
+  const { mutate: regenerateToken, isPending: regenerating } = useMutation(
+    trpc.mapShare.regenerateToken.mutationOptions({
+      onSuccess: (data) => {
+        updateShareCache(data);
+        toast.success("Link reset. The old link no longer works.");
+      },
+      onError: () => toast.error("Failed to reset the link"),
+    }),
+  );
+
+  const mutating = enabling || disabling || settingPassword || regenerating;
+  const enabled = Boolean(share?.enabled);
+  const hasPassword = Boolean(share?.hasPassword);
+  const shareUrl =
+    share && typeof window !== "undefined"
+      ? `${window.location.origin}/share/${share.token}`
+      : "";
+
+  const onToggleLink = (checked: boolean) => {
+    if (checked) {
+      enableShare({ mapId });
+    } else {
+      disableShare({ mapId });
+    }
+  };
+
+  const onTogglePassword = (checked: boolean) => {
+    setPasswordError(null);
+    setPassword("");
+    if (checked) {
+      setPasswordEditing(true);
+      return;
+    }
+    setPasswordEditing(false);
+    if (hasPassword) {
+      setSharePassword({ mapId, password: null });
+    }
+  };
+
+  const onSavePassword = () => {
+    const trimmed = password.trim();
+    if (trimmed.length < MIN_PASSWORD_LENGTH) {
+      setPasswordError(
+        `Password must be at least ${MIN_PASSWORD_LENGTH} characters`,
+      );
+      return;
+    }
+    setPasswordError(null);
+    setSharePassword({ mapId, password: trimmed });
+  };
+
+  const onCopyLink = async () => {
+    if (!shareUrl) {
+      return;
+    }
+    try {
+      await navigator.clipboard.writeText(shareUrl);
+      toast.success("Link copied");
+    } catch {
+      toast.error("Failed to copy the link");
+    }
+  };
+
+  return (
+    <Popover>
+      <PopoverTrigger asChild>
+        <Button variant="outline" size="sm">
+          <Share2Icon />
+          Share
+        </Button>
+      </PopoverTrigger>
+      <PopoverContent align="end" className="w-96 flex flex-col gap-3">
+        <h2 className="text-sm font-semibold">Share this map</h2>
+
+        <div className="flex items-start justify-between gap-4">
+          <div className="flex flex-col gap-1">
+            <p className="text-sm font-medium">Read-only link</p>
+            <p className="text-xs text-muted-foreground">
+              Anyone with the link can view the live map, but not edit it.
+            </p>
+          </div>
+          <Switch
+            checked={enabled}
+            disabled={shareLoading || mutating}
+            onCheckedChange={onToggleLink}
+            aria-label="Enable read-only link"
+          />
+        </div>
+
+        {enabled && share && (
+          <>
+            <div className="flex flex-col gap-2 border-t pt-3">
+              <div className="flex items-center justify-between gap-4">
+                <p className="text-sm font-medium">Require a password</p>
+                <Switch
+                  checked={hasPassword || passwordEditing}
+                  disabled={mutating}
+                  onCheckedChange={onTogglePassword}
+                  aria-label="Require a password"
+                />
+              </div>
+              {passwordEditing && (
+                <>
+                  <div className="flex gap-2">
+                    <Input
+                      type="password"
+                      value={password}
+                      autoFocus
+                      placeholder={
+                        hasPassword ? "New password" : "Choose a password"
+                      }
+                      aria-label="Share password"
+                      onChange={(e) => setPassword(e.target.value)}
+                      onKeyDown={(e) => {
+                        if (e.key === "Enter") {
+                          e.preventDefault();
+                          onSavePassword();
+                        }
+                      }}
+                    />
+                    <Button
+                      size="sm"
+                      onClick={onSavePassword}
+                      disabled={settingPassword || !password}
+                    >
+                      Set
+                    </Button>
+                  </div>
+                  {passwordError && (
+                    <p className="text-xs text-red-600">{passwordError}</p>
+                  )}
+                </>
+              )}
+              {!passwordEditing && hasPassword && (
+                <div className="flex items-center justify-between gap-2">
+                  <p className="text-xs text-muted-foreground">
+                    Viewers must enter this password. Changing or removing it
+                    signs current viewers out.
+                  </p>
+                  <button
+                    type="button"
+                    className="shrink-0 text-xs text-muted-foreground underline cursor-pointer hover:text-foreground"
+                    onClick={() => {
+                      setPasswordError(null);
+                      setPasswordEditing(true);
+                    }}
+                  >
+                    Change
+                  </button>
+                </div>
+              )}
+            </div>
+
+            <div className="flex flex-col gap-2 border-t pt-3">
+              <div className="flex gap-2">
+                <Input
+                  readOnly
+                  value={shareUrl}
+                  className="text-xs"
+                  aria-label="Share link"
+                  onFocus={(e) => e.currentTarget.select()}
+                />
+                <Button
+                  size="sm"
+                  variant="secondary"
+                  onClick={onCopyLink}
+                  disabled={!shareUrl}
+                >
+                  <CopyIcon />
+                  Copy
+                </Button>
+              </div>
+              <button
+                type="button"
+                className="self-start text-xs text-muted-foreground underline cursor-pointer hover:text-foreground disabled:opacity-50"
+                onClick={() => regenerateToken({ mapId })}
+                disabled={regenerating}
+              >
+                Reset link
+              </button>
+              <p className="text-xs text-muted-foreground">
+                Resetting creates a new link; the old one stops working.
+              </p>
+            </div>
+          </>
+        )}
+      </PopoverContent>
+    </Popover>
+  );
+}
diff --git a/src/components/MapModeToggle.tsx b/src/components/MapModeToggle.tsx
index a320bff2..5efcf57b 100644
--- a/src/components/MapModeToggle.tsx
+++ b/src/components/MapModeToggle.tsx
@@ -63,7 +63,7 @@ export default function MapModeToggle({ mode }: MapModeToggleProps) {
             : "text-neutral-500 hover:text-neutral-700",
         )}
       >
-        Share
+        Publish
       </button>
     </div>
   );
diff --git a/src/models/Organisation.ts b/src/models/Organisation.ts
index 2944c9d1..4a9e8427 100644
--- a/src/models/Organisation.ts
+++ b/src/models/Organisation.ts
@@ -4,6 +4,7 @@ export enum Feature {
   PublicMaps = "PublicMaps",
   Enrichment = "Enrichment",
   InviteUsers = "InviteUsers",
+  SharedMaps = "SharedMaps",
   SyncToCrm = "SyncToCrm",
 }