diff --git a/packages/core/lib/components/Modal.tsx b/packages/core/lib/components/Modal.tsx
new file mode 100644
index 0000000..c850a2b
--- /dev/null
+++ b/packages/core/lib/components/Modal.tsx
@@ -0,0 +1,153 @@
+import React, { useEffect, useRef } from 'react';
+import { Button } from './Button';
+import { Label } from './Label';
+
+interface ModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onConfirm?: () => void;
+  title: string;
+  children: React.ReactNode;
+  showCancelButton?: boolean;
+  showCloseIcon?: boolean;
+  width?: 'm' | 'l';
+  closeOnOverlayClick?: boolean;
+  cancelLabel?: string;
+  confirmLabel?: string;
+}
+
+const CloseIcon: React.FC<React.SVGProps<SVGSVGElement>> = (props) => (
+  <svg
+    width="24"
+    height="24"
+    viewBox="0 0 24 24"
+    fill="none"
+    stroke="currentColor"
+    strokeWidth="2"
+    strokeLinecap="round"
+    strokeLinejoin="round"
+    {...props}
+  >
+    <line x1="18" y1="6" x2="6" y2="18" />
+    <line x1="6" y1="6" x2="18" y2="18" />
+  </svg>
+);
+
+export const Modal: React.FC<ModalProps> = ({
+  isOpen,
+  onClose,
+  onConfirm,
+  title,
+  children,
+  showCancelButton = true,
+  showCloseIcon = true,
+  width = 'm',
+  closeOnOverlayClick = true,
+  cancelLabel = '취소',
+  confirmLabel = '확인',
+}) => {
+  const modalRef = useRef<HTMLDivElement>(null);
+  const previousFocusRef = useRef<HTMLElement | null>(null);
+
+  useEffect(() => {
+    if (isOpen) {
+      previousFocusRef.current = document.activeElement as HTMLElement;
+      modalRef.current?.focus();
+      document.body.style.overflow = 'hidden';
+    } else {
+      document.body.style.overflow = 'unset';
+      previousFocusRef.current?.focus();
+    }
+
+    return () => {
+      document.body.style.overflow = 'unset';
+    };
+  }, [isOpen]);
+
+  if (!isOpen) return null;
+
+  const handleKeyDown = (event: React.KeyboardEvent) => {
+    if (event.key === 'Escape') {
+      onClose();
+    }
+  };
+
+  const handleCancel = (e: React.MouseEvent) => {
+    e.stopPropagation();
+    onClose();
+  };
+
+  const modalWidthStyle = {
+    m: 'w-[560px]',
+    l: 'w-[850px]',
+  }[width];
+
+  return (
+    <div
+      className="fixed inset-0 z-50 flex items-center justify-center overflow-x-hidden overflow-y-auto outline-none focus:outline-none"
+      onClick={closeOnOverlayClick ? handleCancel : undefined}
+    >
+      <div
+        className="fixed inset-0 bg-black opacity-50"
+        aria-hidden="true"
+      ></div>
+      <div
+        ref={modalRef}
+        className={`relative mx-auto my-6 bg-white rounded-lg shadow-lg ${modalWidthStyle}`}
+        role="dialog"
+        aria-modal="true"
+        aria-labelledby="modal-title"
+        tabIndex={-1}
+        onKeyDown={handleKeyDown}
+        onClick={(e) => e.stopPropagation()}
+      >
+        <div className="flex flex-col max-h-[90vh]">
+          <div className="flex items-start justify-between p-5 border-b border-gray-10">
+            <Label id="modal-title" size="l" weight="bold" color="gray-90">
+              {title}
+            </Label>
+          </div>
+
+          <div className="relative flex-auto p-6 overflow-y-auto">
+            {children}
+          </div>
+
+          {(onConfirm || showCancelButton) && (
+            <div className="flex items-center justify-end p-6 border-t border-gray-10 gap-4">
+              {showCancelButton && (
+                <Button
+                  variant="tertiary"
+                  onClick={handleCancel}
+                  size="medium"
+                  className="px-6"
+                >
+                  {cancelLabel}
+                </Button>
+              )}
+              {onConfirm && (
+                <Button
+                  variant="primary"
+                  onClick={onConfirm}
+                  size="medium"
+                  className="px-6"
+                >
+                  {confirmLabel}
+                </Button>
+              )}
+            </div>
+          )}
+
+          {showCloseIcon && (
+            <button
+              className="absolute top-5 right-5 p-1 ml-auto text-gray-50 transition-colors duration-200 hover:text-gray-70 hover:bg-gray-20 rounded-2"
+              onClick={handleCancel}
+              aria-label="닫기"
+            >
+              <CloseIcon />
+            </button>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+};
diff --git a/packages/core/lib/index.ts b/packages/core/lib/index.ts
index 2106604..bb7168f 100644
--- a/packages/core/lib/index.ts
+++ b/packages/core/lib/index.ts
@@ -21,6 +21,7 @@ import { Chip } from './components/Chip';
 import { Checkbox } from './components/Checkbox';
 import { RadioButtonGroup } from './components/RadioButton';
 import { Tabs } from './components/Tab';
+import { Modal } from './components/Modal';
 
 export { Display, Heading, Title, Body, Detail, Label, Link, colors };
 export {
@@ -37,4 +38,5 @@ export {
   TextArea,
   Breadcrumb,
   Tabs,
+  Modal,
 };
diff --git a/stories/core/Modal.stories.tsx b/stories/core/Modal.stories.tsx
new file mode 100644
index 0000000..ab11e23
--- /dev/null
+++ b/stories/core/Modal.stories.tsx
@@ -0,0 +1,145 @@
+import React, { useState } from 'react';
+import type { Meta, StoryObj } from '@storybook/react';
+import { Modal } from '../../packages/core/lib';
+
+const meta = {
+  title: 'Components/Modal',
+  component: Modal,
+  parameters: {
+    layout: 'fullscreen',
+    docs: {
+      story: {
+        inline: false,
+        iframeHeight: 800,
+      },
+    },
+  },
+  tags: ['autodocs'],
+  argTypes: {
+    onClose: { action: 'clicked' },
+    title: { control: 'text' },
+    children: { control: 'text' },
+    isOpen: { control: 'boolean' },
+  },
+} satisfies Meta<typeof Modal>;
+
+export default meta;
+type Story = StoryObj<typeof meta>;
+
+interface ModalWrapperProps {
+  title: string;
+  children: React.ReactNode;
+}
+
+const ModalWrapper: React.FC<ModalWrapperProps> = (args) => {
+  const [isOpen, setIsOpen] = useState(false);
+
+  return (
+    <div style={{ width: '100vw', height: '100vh', position: 'relative' }}>
+      <button
+        style={{
+          border: '1px solid black',
+          padding: '10px',
+          borderRadius: '4px',
+        }}
+        onClick={() => setIsOpen(true)}
+      >
+        모달 열기
+      </button>
+      <Modal
+        {...args}
+        isOpen={isOpen}
+        onClose={() => setIsOpen(false)}
+        onCancel={() => setIsOpen(false)}
+        onConfirm={
+          args.onConfirm
+            ? () => {
+                args.onConfirm();
+                setIsOpen(false);
+              }
+            : undefined
+        }
+      />
+    </div>
+  );
+};
+
+export const Default = {
+  render: (args) => <ModalWrapper {...args} />,
+  args: {
+    title: '모달 제목',
+    children: (
+      <p>
+        모달 내용입니다. 여기에 원하는 컨텐츠를 넣을 수 있습니다. 모달
+        내용입니다. 여기에 원하는 컨텐츠를 넣을 수 있습니다.모달 내용입니다.
+        여기에 원하는 컨텐츠를 넣을 수 있습니다.모달 내용입니다. 여기에 원하는
+        컨텐츠를 넣을 수 있습니다.모달 내용입니다. 여기에 원하는 컨텐츠를 넣을
+        수 있습니다.모달 내용입니다. 여기에 원하는 컨텐츠를 넣을 수
+        있습니다.모달 내용입니다. 여기에 원하는 컨텐츠를 넣을 수 있습니다.
+      </p>
+    ),
+    showCancelButton: true,
+    showCloseIcon: true,
+    onConfirm: () => console.log('확인 함수'),
+  },
+};
+
+export const NoCloseIcon = {
+  render: (args) => <ModalWrapper {...args} />,
+  args: {
+    ...Default.args,
+    showCloseIcon: false,
+  },
+};
+
+export const NoCancelButton = {
+  render: (args) => <ModalWrapper {...args} />,
+  args: {
+    ...Default.args,
+    showCancelButton: false,
+  },
+};
+
+export const ConfirmOnly = {
+  render: (args) => <ModalWrapper {...args} />,
+  args: {
+    ...Default.args,
+    showCancelButton: false,
+    showCloseIcon: false,
+    closeOnOverlayClick: false,
+  },
+};
+
+export const Medium = {
+  render: (args) => <ModalWrapper {...args} />,
+  args: {
+    ...Default.args,
+    width: 'm',
+  },
+};
+
+export const Large = {
+  render: (args) => <ModalWrapper {...args} />,
+  args: {
+    ...Default.args,
+    width: 'l',
+  },
+};
+
+export const CustomLabel = {
+  render: (args) => <ModalWrapper {...args} />,
+  args: {
+    ...Default.args,
+    cancelLabel: '취소하기',
+    confirmLabel: '확인하기',
+  },
+};
+
+export const NoFooter = {
+  render: (args) => <ModalWrapper {...args} />,
+  args: {
+    ...Default.args,
+    onConfirm: undefined,
+    showCancelButton: false,
+  },
+};