diff --git a/src/components/CheckboxGroup/CheckboxGroup.module.css b/src/components/CheckboxGroup/CheckboxGroup.module.css
index 0cfa49ad..888d4c42 100644
--- a/src/components/CheckboxGroup/CheckboxGroup.module.css
+++ b/src/components/CheckboxGroup/CheckboxGroup.module.css
@@ -10,4 +10,7 @@
   color: var(--color-text-sub);
   margin-bottom: var(--size-spacing-md);
   padding: 0;
+  display: flex;
+  align-items: center;
+  gap: var(--size-spacing-xs);
 }
diff --git a/src/components/CheckboxGroup/CheckboxGroup.tsx b/src/components/CheckboxGroup/CheckboxGroup.tsx
index 09f6b72f..1a04efe8 100644
--- a/src/components/CheckboxGroup/CheckboxGroup.tsx
+++ b/src/components/CheckboxGroup/CheckboxGroup.tsx
@@ -1,6 +1,7 @@
 'use client';
 
 import styles from './CheckboxGroup.module.css';
+import { RequiredLabel } from '../../sharedComponents/RequiredLabel/RequiredLabel';
 import { Checkbox } from '../Checkbox/Checkbox';
 import { Flex } from '../Flex/Flex';
 import type { FC, ReactElement } from 'react';
@@ -11,6 +12,11 @@ export type Props = {
    * チェックボックスグループの見出し（legend要素）
    */
   label: string;
+  /**
+   * 必須マークを表示するか
+   * 注意: trueとしてもinput要素のrequired属性は付与されません
+   */
+  showRequiredLabel?: boolean;
   /**
    * チェックボックスの配置方向
    * @default column
@@ -18,10 +24,13 @@ export type Props = {
   direction?: 'column' | 'row';
 };
 
-export const CheckboxGroup: FC<Props> = ({ children, label, direction = 'column' }) => {
+export const CheckboxGroup: FC<Props> = ({ children, label, showRequiredLabel, direction = 'column' }) => {
   return (
     <fieldset className={styles.wrapper}>
-      <legend className={styles.legend}>{label}</legend>
+      <legend className={styles.legend}>
+        {label}
+        {showRequiredLabel && <RequiredLabel />}
+      </legend>
       <Flex spacing="md" direction={direction}>
         {children}
       </Flex>
diff --git a/src/components/Label/Label.module.css b/src/components/Label/Label.module.css
index dc3b2721..315fe583 100644
--- a/src/components/Label/Label.module.css
+++ b/src/components/Label/Label.module.css
@@ -1,7 +1,10 @@
 .label {
+  display: flex;
   font-size: var(--text-body-sm-size);
   font-weight: bold;
   color: var(--color-text-sub);
+  align-items: center;
+  gap: var(--size-spacing-xs);
 }
 
 legend.label {
diff --git a/src/components/Label/Label.tsx b/src/components/Label/Label.tsx
index e474af68..617c5c87 100644
--- a/src/components/Label/Label.tsx
+++ b/src/components/Label/Label.tsx
@@ -1,6 +1,7 @@
 'use client';
 
 import styles from './Label.module.css';
+import { RequiredLabel } from '../../sharedComponents/RequiredLabel/RequiredLabel';
 import type { ElementType, FC, ReactNode } from 'react';
 
 type Props = {
@@ -14,12 +15,18 @@ type Props = {
    * ラベルが紐づくフォーム要素のid属性。asにlabelを指定した場合に必用
    */
   htmlFor?: string;
+  /**
+   * 必須マークを表示するか
+   * 注意: trueとしてもinput要素のrequired属性は付与されません
+   */
+  showRequiredLabel?: boolean;
 };
 
-export const Label: FC<Props> = ({ children, as: LabelComponent = 'label', htmlFor }) => {
+export const Label: FC<Props> = ({ children, as: LabelComponent = 'label', htmlFor, showRequiredLabel }) => {
   return (
     <LabelComponent htmlFor={htmlFor} className={styles.label}>
       {children}
+      {showRequiredLabel && <RequiredLabel />}
     </LabelComponent>
   );
 };
diff --git a/src/components/RadioGroup/RadioGroup.module.css b/src/components/RadioGroup/RadioGroup.module.css
index 0cfa49ad..888d4c42 100644
--- a/src/components/RadioGroup/RadioGroup.module.css
+++ b/src/components/RadioGroup/RadioGroup.module.css
@@ -10,4 +10,7 @@
   color: var(--color-text-sub);
   margin-bottom: var(--size-spacing-md);
   padding: 0;
+  display: flex;
+  align-items: center;
+  gap: var(--size-spacing-xs);
 }
diff --git a/src/components/RadioGroup/RadioGroup.tsx b/src/components/RadioGroup/RadioGroup.tsx
index aa3cc7df..2f6cf639 100644
--- a/src/components/RadioGroup/RadioGroup.tsx
+++ b/src/components/RadioGroup/RadioGroup.tsx
@@ -1,6 +1,7 @@
 'use client';
 
 import styles from './RadioGroup.module.css';
+import { RequiredLabel } from '../../sharedComponents/RequiredLabel/RequiredLabel';
 import { Flex } from '../Flex/Flex';
 import { RadioButton } from '../RadioButton/RadioButton';
 import { RadioCard } from '../RadioCard/RadioCard';
@@ -14,6 +15,11 @@ export type Props = {
    * ラジオグループの見出し（legend要素）
    */
   label: string;
+  /**
+   * 必須マークを表示するか
+   * 注意: trueとしてもinput要素のrequired属性は付与されません
+   */
+  showRequiredLabel?: boolean;
   /**
    * ラジオボタンの配置方向
    * @default column
@@ -21,13 +27,16 @@ export type Props = {
   direction?: 'column' | 'row';
 };
 
-export const RadioGroup: FC<Props> = ({ children, label, direction = 'column' }) => {
+export const RadioGroup: FC<Props> = ({ children, label, showRequiredLabel = false, direction = 'column' }) => {
   const childrenIsCard = children.some((child) => child.type === RadioCard);
   const childenIsBlock = direction === 'row' || (childrenIsCard && direction === 'column');
 
   return (
     <fieldset className={styles.wrapper}>
-      <legend className={styles.legend}>{label}</legend>
+      <legend className={styles.legend}>
+        {label}
+        {showRequiredLabel && <RequiredLabel />}
+      </legend>
       <Flex
         spacing={childrenIsCard ? 'sm' : 'md'}
         alignItems={childenIsBlock ? 'normal' : undefined}
diff --git a/src/sharedComponents/RequiredLabel/RequiredLabel.module.css b/src/sharedComponents/RequiredLabel/RequiredLabel.module.css
new file mode 100644
index 00000000..eb7f98ac
--- /dev/null
+++ b/src/sharedComponents/RequiredLabel/RequiredLabel.module.css
@@ -0,0 +1,9 @@
+.required {
+  padding: 2px var(--size-spacing-xxs) 1px;
+  border-radius: var(--radius-sm);
+  font-size: var(--text-tag-md-size);
+  line-height: var(--text-tag-md-line);
+  display: inline-block;
+  color: var(--color-accent);
+  background-color: var(--color-background-accent);
+}
diff --git a/src/sharedComponents/RequiredLabel/RequiredLabel.tsx b/src/sharedComponents/RequiredLabel/RequiredLabel.tsx
new file mode 100644
index 00000000..3c790e1e
--- /dev/null
+++ b/src/sharedComponents/RequiredLabel/RequiredLabel.tsx
@@ -0,0 +1,8 @@
+'use client';
+
+import React from 'react';
+import styles from './RequiredLabel.module.css';
+
+export const RequiredLabel: React.FC = () => {
+  return <span className={styles.required}>必須</span>;
+};
diff --git a/src/stories/Checkbox.stories.tsx b/src/stories/Checkbox.stories.tsx
index 57524f89..dd09e1b4 100644
--- a/src/stories/Checkbox.stories.tsx
+++ b/src/stories/Checkbox.stories.tsx
@@ -132,3 +132,36 @@ export const Disabled: Story = {
     </Stack>
   ),
 };
+
+export const ShowRequiredLabel: Story = {
+  render: () => {
+    const [selectedItem, setSelectedItem] = useState<string[]>([options[0]]);
+
+    const onChange: ChangeEventHandler<HTMLInputElement> = useCallback(
+      (event) => {
+        if (event.target.checked) {
+          setSelectedItem([...selectedItem, event.target.value]);
+        } else {
+          setSelectedItem(selectedItem.filter((item) => item !== event.target.value));
+        }
+      },
+      [selectedItem],
+    );
+
+    return (
+      <CheckboxGroup label="Checkbox" showRequiredLabel>
+        {options.map((option) => (
+          <Checkbox
+            name="default"
+            value={option}
+            onChange={onChange}
+            checked={selectedItem.includes(option)}
+            key={option}
+          >
+            {option}
+          </Checkbox>
+        ))}
+      </CheckboxGroup>
+    );
+  },
+};
diff --git a/src/stories/Form.stories.tsx b/src/stories/Form.stories.tsx
index 339b46ee..5f6b0fb6 100644
--- a/src/stories/Form.stories.tsx
+++ b/src/stories/Form.stories.tsx
@@ -16,7 +16,9 @@ export const Default: StoryObj = {
 
     return (
       <Stack spacing="xs">
-        <Label htmlFor="field">項目</Label>
+        <Label htmlFor="field" showRequiredLabel>
+          項目
+        </Label>
         <Input id="field" value={value} onChange={onChange} />
         <HelperMessage>説明文です</HelperMessage>
         <HelperMessage>説明文です</HelperMessage>
@@ -55,7 +57,7 @@ export const RadioButtons: StoryObj = {
 
     return (
       <Stack spacing="md" alignItems="normal">
-        <RadioGroup label="通院状況">
+        <RadioGroup label="通院状況" showRequiredLabel>
           {options.map((option) => (
             <RadioButton
               name="commuting"
diff --git a/src/stories/Label.stories.tsx b/src/stories/Label.stories.tsx
index d92a0849..27bc3902 100644
--- a/src/stories/Label.stories.tsx
+++ b/src/stories/Label.stories.tsx
@@ -11,3 +11,11 @@ type Story = StoryObj<typeof Label>;
 export const Default: Story = {
   render: () => <Label htmlFor="id">全角カタカナでご入力ください</Label>,
 };
+
+export const Rqruied: Story = {
+  render: () => (
+    <Label htmlFor="id" showRequiredLabel>
+      全角カタカナでご入力ください
+    </Label>
+  ),
+};
diff --git a/src/stories/RadioButton.stories.tsx b/src/stories/RadioButton.stories.tsx
index a054688e..f15c89fd 100644
--- a/src/stories/RadioButton.stories.tsx
+++ b/src/stories/RadioButton.stories.tsx
@@ -120,3 +120,35 @@ export const Disabled: Story = {
     name: 'disabled',
   },
 };
+
+export const ShowRequiredLabel: Story = {
+  render: (args) => {
+    const [selectedItem, setSelectedItem] = useState(options[0]);
+
+    const onChange: ChangeEventHandler<HTMLInputElement> = useCallback((event) => {
+      setSelectedItem(event.target.value);
+    }, []);
+
+    return (
+      <RadioGroup label="RadioButton" showRequiredLabel>
+        {options.map((option) => (
+          <RadioButton
+            key={option}
+            {...args}
+            value={option}
+            id={option}
+            onChange={onChange}
+            checked={selectedItem === option}
+            name="default"
+          >
+            {option}
+          </RadioButton>
+        ))}
+      </RadioGroup>
+    );
+  },
+  args: {
+    ...defaultArgs,
+    name: 'default',
+  },
+};
diff --git a/src/stories/RadioCard.stories.tsx b/src/stories/RadioCard.stories.tsx
index af69c442..91abc9e5 100644
--- a/src/stories/RadioCard.stories.tsx
+++ b/src/stories/RadioCard.stories.tsx
@@ -101,3 +101,30 @@ export const Block: Story = {
     block: true,
   },
 };
+
+export const ShowRequiredLabel: Story = {
+  render: () => {
+    const [selectedItem, setSelectedItem] = useState(options[0]);
+
+    const onChange: ChangeEventHandler<HTMLInputElement> = useCallback((event) => {
+      setSelectedItem(event.target.value);
+    }, []);
+
+    return (
+      <RadioGroup label="RadioCard" showRequiredLabel>
+        {options.map((option) => (
+          <RadioCard
+            name="options"
+            value={option}
+            onChange={onChange}
+            checked={selectedItem === option}
+            id={option}
+            key={option}
+          >
+            {option}
+          </RadioCard>
+        ))}
+      </RadioGroup>
+    );
+  },
+};