diff --git a/.changeset/smooth-wolves-sort.md b/.changeset/smooth-wolves-sort.md
new file mode 100644
index 0000000000..f196927073
--- /dev/null
+++ b/.changeset/smooth-wolves-sort.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-jenkins': patch
+---
+
+Show error in Jenkins card for errors exposed by the Jenkins API
diff --git a/plugins/jenkins/src/components/Cards/Cards.test.tsx b/plugins/jenkins/src/components/Cards/Cards.test.tsx
new file mode 100644
index 0000000000..67996f4dde
--- /dev/null
+++ b/plugins/jenkins/src/components/Cards/Cards.test.tsx
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2020 Spotify AB
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from 'react';
+import { renderInTestApp } from '@backstage/test-utils';
+import { LatestRunCard } from './Cards';
+import { EntityProvider } from '@backstage/plugin-catalog-react';
+import { ApiProvider, ApiRegistry } from '@backstage/core';
+import { JenkinsApi, jenkinsApiRef } from '../../api';
+
+describe('<LatestRunCard />', () => {
+  const entity = {
+    apiVersion: 'v1',
+    kind: 'Component',
+    metadata: {
+      name: 'software',
+      description: 'This is the description',
+      annotations: { JENKINS_ANNOTATION: 'jenkins' },
+    },
+  };
+
+  const jenkinsApi: Partial<JenkinsApi> = {
+    getLastBuild: () => Promise.resolve({ timestamp: 0, result: 'success' }),
+  };
+
+  it('should show success status of latest build', async () => {
+    const apis = ApiRegistry.from([[jenkinsApiRef, jenkinsApi]]);
+
+    const { getByText } = await renderInTestApp(
+      <ApiProvider apis={apis}>
+        <EntityProvider entity={entity}>
+          <LatestRunCard branch="master" />
+        </EntityProvider>
+      </ApiProvider>,
+    );
+
+    expect(getByText('Completed')).toBeInTheDocument();
+  });
+
+  it('should show the appropriate error in case of a connection error', async () => {
+    const jenkinsApiWithError: Partial<JenkinsApi> = {
+      getLastBuild: () => Promise.reject(new Error('Unauthorized')),
+    };
+
+    const apis = ApiRegistry.from([[jenkinsApiRef, jenkinsApiWithError]]);
+
+    const { getByText } = await renderInTestApp(
+      <ApiProvider apis={apis}>
+        <EntityProvider entity={entity}>
+          <LatestRunCard branch="master" />
+        </EntityProvider>
+      </ApiProvider>,
+    );
+
+    expect(getByText("Error: Can't connect to Jenkins")).toBeInTheDocument();
+    expect(getByText('Unauthorized')).toBeInTheDocument();
+  });
+
+  it('should show the appropriate error in case Jenkins project is not found', async () => {
+    const jenkinsApiWithError: Partial<JenkinsApi> = {
+      getLastBuild: () =>
+        Promise.reject({
+          notFound: true,
+          message: 'jenkins-project not found',
+        }),
+    };
+
+    const apis = ApiRegistry.from([[jenkinsApiRef, jenkinsApiWithError]]);
+
+    const { getByText } = await renderInTestApp(
+      <ApiProvider apis={apis}>
+        <EntityProvider entity={entity}>
+          <LatestRunCard branch="master" />
+        </EntityProvider>
+      </ApiProvider>,
+    );
+
+    expect(getByText("Error: Can't find Jenkins project")).toBeInTheDocument();
+    expect(getByText('jenkins-project not found')).toBeInTheDocument();
+  });
+});
diff --git a/plugins/jenkins/src/components/Cards/Cards.tsx b/plugins/jenkins/src/components/Cards/Cards.tsx
index f19ed608ce..010afa8990 100644
--- a/plugins/jenkins/src/components/Cards/Cards.tsx
+++ b/plugins/jenkins/src/components/Cards/Cards.tsx
@@ -17,13 +17,14 @@ import {
   InfoCard,
   InfoCardVariants,
   StructuredMetadataTable,
+  WarningPanel,
 } from '@backstage/core';
 import { LinearProgress, Link, makeStyles, Theme } from '@material-ui/core';
 import ExternalLinkIcon from '@material-ui/icons/Launch';
 import { DateTime, Duration } from 'luxon';
 import React from 'react';
 import { JenkinsRunStatus } from '../BuildsPage/lib/Status';
-import { useBuilds } from '../useBuilds';
+import { ErrorType, useBuilds } from '../useBuilds';
 import { useProjectSlugFromEntity } from '../useProjectSlugFromEntity';
 
 const useStyles = makeStyles<Theme>({
@@ -75,6 +76,23 @@ const WidgetContent = ({
   );
 };
 
+const JenkinsApiErrorPanel = ({
+  message,
+  errorType,
+}: {
+  message: string;
+  errorType: ErrorType;
+}) => {
+  let title = undefined;
+  if (errorType === ErrorType.CONNECTION_ERROR) {
+    title = "Can't connect to Jenkins";
+  } else if (errorType === ErrorType.NOT_FOUND) {
+    title = "Can't find Jenkins project";
+  }
+
+  return <WarningPanel severity="error" title={title} message={message} />;
+};
+
 export const LatestRunCard = ({
   branch = 'master',
   variant,
@@ -83,11 +101,22 @@ export const LatestRunCard = ({
   variant?: InfoCardVariants;
 }) => {
   const projectName = useProjectSlugFromEntity();
-  const [{ builds, loading }] = useBuilds(projectName, branch);
+  const [{ builds, loading, error }] = useBuilds(projectName, branch);
   const latestRun = builds ?? {};
   return (
     <InfoCard title={`Latest ${branch} build`} variant={variant}>
-      <WidgetContent loading={loading} branch={branch} latestRun={latestRun} />
+      {!error ? (
+        <WidgetContent
+          loading={loading}
+          branch={branch}
+          latestRun={latestRun}
+        />
+      ) : (
+        <JenkinsApiErrorPanel
+          message={error.message}
+          errorType={error.errorType}
+        />
+      )}
     </InfoCard>
   );
 };
diff --git a/plugins/jenkins/src/components/useBuilds.ts b/plugins/jenkins/src/components/useBuilds.ts
index 5a6f8b9f08..be573ef605 100644
--- a/plugins/jenkins/src/components/useBuilds.ts
+++ b/plugins/jenkins/src/components/useBuilds.ts
@@ -18,6 +18,11 @@ import { useState } from 'react';
 import { useAsyncRetry } from 'react-use';
 import { jenkinsApiRef } from '../api';
 
+export enum ErrorType {
+  CONNECTION_ERROR,
+  NOT_FOUND,
+}
+
 export function useBuilds(projectName: string, branch?: string) {
   const api = useApi(jenkinsApiRef);
   const errorApi = useApi(errorApiRef);
@@ -25,6 +30,10 @@ export function useBuilds(projectName: string, branch?: string) {
   const [total, setTotal] = useState(0);
   const [page, setPage] = useState(0);
   const [pageSize, setPageSize] = useState(5);
+  const [error, setError] = useState<{
+    message: string;
+    errorType: ErrorType;
+  }>();
 
   const restartBuild = async (buildName: string) => {
     try {
@@ -48,7 +57,10 @@ export function useBuilds(projectName: string, branch?: string) {
 
       return build || [];
     } catch (e) {
-      errorApi.post(e);
+      const errorType = e.notFound
+        ? ErrorType.NOT_FOUND
+        : ErrorType.CONNECTION_ERROR;
+      setError({ message: e.message, errorType });
       throw e;
     }
   }, [api, errorApi, projectName, branch]);
@@ -61,6 +73,7 @@ export function useBuilds(projectName: string, branch?: string) {
       builds,
       projectName,
       total,
+      error,
     },
     {
       builds,