diff --git a/package.json b/package.json
index cde0edd92f..92ea5d5238 100644
--- a/package.json
+++ b/package.json
@@ -824,6 +824,11 @@
 					"default": "author",
 					"description": "%githubIssues.issueAvatarDisplay.description%"
 				},
+				"githubIssues.showIssueNumberInTree": {
+					"type": "boolean",
+					"default": false,
+					"description": "%githubIssues.showIssueNumberInTree.description%"
+				},
 				"githubPullRequests.focusedMode": {
 					"properties": {
 						"oneOf": [
diff --git a/package.nls.json b/package.nls.json
index ea64843094..3d0f267039 100644
--- a/package.nls.json
+++ b/package.nls.json
@@ -176,6 +176,7 @@
 	"githubIssues.issueAvatarDisplay.description": "Controls which avatar to display in the issue list.",
 	"githubIssues.issueAvatarDisplay.author": "Show the avatar of the issue creator.",
 	"githubIssues.issueAvatarDisplay.assignee": "Show the avatar of the first assignee (show GitHub icon if no assignees).",
+	"githubIssues.showIssueNumberInTree.description": "Shows the issue number in the tree view.",
 	"githubPullRequests.focusedMode.description": "The layout to use when a pull request is checked out. Set to false to prevent layout changes.",
 	"githubPullRequests.focusedMode.firstDiff": "Show the first diff in the pull request. If there are no changes, show the overview.",
 	"githubPullRequests.focusedMode.overview": "Show the overview of the pull request.",
diff --git a/src/common/settingKeys.ts b/src/common/settingKeys.ts
index 0f5e64399b..a4bdae5352 100644
--- a/src/common/settingKeys.ts
+++ b/src/common/settingKeys.ts
@@ -67,6 +67,7 @@ export const IGNORE_MILESTONES = 'ignoreMilestones';
 export const ALLOW_FETCH = 'allowFetch';
 export const ALWAYS_PROMPT_FOR_NEW_ISSUE_REPO = 'alwaysPromptForNewIssueRepo';
 export const ISSUE_AVATAR_DISPLAY = 'issueAvatarDisplay';
+export const SHOW_ISSUE_NUMBER_IN_TREE = 'showIssueNumberInTree';
 export const EXPERIMENTAL_CHAT = 'experimental.chat';
 export const EXPERIMENTAL_USE_QUICK_CHAT = 'experimental.useQuickChat';
 export const EXPERIMENTAL_NOTIFICATIONS_PAGE_SIZE = 'experimental.notificationsViewPageSize';
diff --git a/src/issues/issuesView.ts b/src/issues/issuesView.ts
index f43a04f15a..9628ad7ea8 100644
--- a/src/issues/issuesView.ts
+++ b/src/issues/issuesView.ts
@@ -8,7 +8,7 @@ import * as vscode from 'vscode';
 import { issueBodyHasLink } from './issueLinkLookup';
 import { IssueItem, QueryGroup, StateManager } from './stateManager';
 import { commands, contexts } from '../common/executeCommands';
-import { ISSUE_AVATAR_DISPLAY, IssueAvatarDisplay, ISSUES_SETTINGS_NAMESPACE } from '../common/settingKeys';
+import { ISSUE_AVATAR_DISPLAY, IssueAvatarDisplay, ISSUES_SETTINGS_NAMESPACE, SHOW_ISSUE_NUMBER_IN_TREE } from '../common/settingKeys';
 import { DataUri } from '../common/uri';
 import { groupBy } from '../common/utils';
 import { FolderRepositoryManager, ReposManagerState } from '../github/folderRepositoryManager';
@@ -65,7 +65,8 @@ export class IssuesTreeData
 		// Listen for changes to the avatar display setting
 		context.subscriptions.push(
 			vscode.workspace.onDidChangeConfiguration(change => {
-				if (change.affectsConfiguration(`${ISSUES_SETTINGS_NAMESPACE}.${ISSUE_AVATAR_DISPLAY}`)) {
+				if (change.affectsConfiguration(`${ISSUES_SETTINGS_NAMESPACE}.${ISSUE_AVATAR_DISPLAY}`)
+					|| change.affectsConfiguration(`${ISSUES_SETTINGS_NAMESPACE}.${SHOW_ISSUE_NUMBER_IN_TREE}`)) {
 					this._onDidChangeTreeData.fire();
 				}
 			}),
@@ -87,7 +88,11 @@ export class IssuesTreeData
 	}
 
 	private async getIssueTreeItem(element: IssueItem): Promise<vscode.TreeItem> {
-		const treeItem = new vscode.TreeItem(element.title, vscode.TreeItemCollapsibleState.None);
+		const showIssueNumber = vscode.workspace
+			.getConfiguration(ISSUES_SETTINGS_NAMESPACE, null)
+			.get<boolean>(SHOW_ISSUE_NUMBER_IN_TREE, false);
+		const numberPrefix = showIssueNumber ? `#${element.number}: ` : '';
+		const treeItem = new vscode.TreeItem(`${numberPrefix}${element.title}`, vscode.TreeItemCollapsibleState.None);
 
 		const avatarDisplaySetting = vscode.workspace
 			.getConfiguration(ISSUES_SETTINGS_NAMESPACE, null)
@@ -133,7 +138,7 @@ export class IssuesTreeData
 			// Escape any $(...) syntax to avoid rendering issue titles as icons.
 			const escapedTitle = element.title.replace(/\$\([a-zA-Z0-9~-]+\)/g, '\\$&');
 			const label: vscode.TreeItemLabel2 = {
-				label: new vscode.MarkdownString(`$(check) ${escapedTitle}`, true)
+				label: new vscode.MarkdownString(`$(check) ${numberPrefix}${escapedTitle}`, true)
 			};
 			treeItem.label = label as vscode.TreeItemLabel;
 			treeItem.contextValue = 'currentissue';