diff --git a/cypress/e2e/spotlight/spotlight.spec.ts b/cypress/e2e/spotlight/spotlight.spec.ts
index fee1e39071..63b3d00e1b 100644
--- a/cypress/e2e/spotlight/spotlight.spec.ts
+++ b/cypress/e2e/spotlight/spotlight.spec.ts
@@ -114,6 +114,7 @@ Cypress.Commands.add("startDM", (name: string) => {
     cy.openSpotlightDialog().within(() => {
         cy.spotlightFilter(Filter.People);
         cy.spotlightSearch().clear().type(name);
+        cy.wait(1000); // wait for the dialog code to settle
         cy.get(".mx_Spinner").should("not.exist");
         cy.spotlightResults().should("have.length", 1);
         cy.spotlightResults().eq(0).should("contain", name);
@@ -216,6 +217,7 @@ describe("Spotlight", () => {
     it("should find joined rooms", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightSearch().clear().type(room1Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 1);
             cy.spotlightResults().eq(0).should("contain", room1Name);
             cy.spotlightResults().eq(0).click();
@@ -229,6 +231,7 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.PublicRooms);
             cy.spotlightSearch().clear().type(room1Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 1);
             cy.spotlightResults().eq(0).should("contain", room1Name);
             cy.spotlightResults().eq(0).should("contain", "View");
@@ -243,6 +246,7 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.PublicRooms);
             cy.spotlightSearch().clear().type(room2Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 1);
             cy.spotlightResults().eq(0).should("contain", room2Name);
             cy.spotlightResults().eq(0).should("contain", "Join");
@@ -258,6 +262,7 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.PublicRooms);
             cy.spotlightSearch().clear().type(room3Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 1);
             cy.spotlightResults().eq(0).should("contain", room3Name);
             cy.spotlightResults().eq(0).should("contain", "View");
@@ -296,6 +301,7 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.People);
             cy.spotlightSearch().clear().type(bot1Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 1);
             cy.spotlightResults().eq(0).should("contain", bot1Name);
             cy.spotlightResults().eq(0).click();
@@ -308,6 +314,7 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.People);
             cy.spotlightSearch().clear().type(bot2Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 1);
             cy.spotlightResults().eq(0).should("contain", bot2Name);
             cy.spotlightResults().eq(0).click();
@@ -324,6 +331,7 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.People);
             cy.spotlightSearch().clear().type(bot2Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 1);
             cy.spotlightResults().eq(0).should("contain", bot2Name);
             cy.spotlightResults().eq(0).click();
@@ -352,6 +360,7 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.People);
             cy.spotlightSearch().clear().type(bot1.getUserId());
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 2);
             cy.spotlightResults().eq(0).should("contain", `${bot1Name} and ${bot2Name}`);
         });
@@ -360,15 +369,37 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.People);
             cy.spotlightSearch().clear().type(bot2.getUserId());
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 2);
             cy.spotlightResults().eq(0).should("contain", `${bot1Name} and ${bot2Name}`);
         });
     });
 
+    // Test against https://github.com/vector-im/element-web/issues/22851
+    it("should show each person result only once", () => {
+        cy.openSpotlightDialog().within(() => {
+            cy.spotlightFilter(Filter.People);
+
+            // 2 rounds of search to simulate the bug conditions. Specifically, the first search
+            // should have 1 result (not 2) and the second search should also have 1 result (instead
+            // of the super buggy 3 described by https://github.com/vector-im/element-web/issues/22851)
+            //
+            // We search for user ID to trigger the profile lookup within the dialog.
+            for (let i = 0; i < 2; i++) {
+                cy.log("Iteration: " + i);
+                cy.spotlightSearch().clear().type(bot1.getUserId());
+                cy.wait(1000); // wait for the dialog code to settle
+                cy.spotlightResults().should("have.length", 1);
+                cy.spotlightResults().eq(0).should("contain", bot1.getUserId());
+            }
+        });
+    });
+
     it("should allow opening group chat dialog", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.People);
             cy.spotlightSearch().clear().type(bot2Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.spotlightResults().should("have.length", 1);
             cy.spotlightResults().eq(0).should("contain", bot2Name);
             cy.get(".mx_SpotlightDialog_startGroupChat").should("contain", "Start a group chat");
@@ -390,6 +421,7 @@ describe("Spotlight", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.People);
             cy.spotlightSearch().clear().type(bot1Name);
+            cy.wait(1000); // wait for the dialog code to settle
             cy.get(".mx_Spinner").should("not.exist");
             cy.spotlightResults().should("have.length", 1);
         });
diff --git a/src/components/views/dialogs/spotlight/SpotlightDialog.tsx b/src/components/views/dialogs/spotlight/SpotlightDialog.tsx
index dd2b923211..3d8b16c1f4 100644
--- a/src/components/views/dialogs/spotlight/SpotlightDialog.tsx
+++ b/src/components/views/dialogs/spotlight/SpotlightDialog.tsx
@@ -376,7 +376,9 @@ const SpotlightDialog: React.FC<IProps> = ({ initialText = "", initialFilter = n
                 })),
                 ...roomResults,
                 ...userResults,
-                ...(profile ? [new DirectoryMember(profile)] : []).map(toMemberResult),
+                ...(profile && !alreadyAddedUserIds.has(profile.user_id)
+                    ? [new DirectoryMember(profile)]
+                    : []).map(toMemberResult),
                 ...publicRooms.map(toPublicRoomResult),
             ].filter(result => filter === null || result.filter.includes(filter));
         },