← 1820 1819 1818 1821 in Portugal → 1822 1823 1824
Centuries:	17th 18th 19th 20th 21st
Decades:	1800s 1810s 1820s 1830s 1840s
See also:	List of years in Portugal

Events in the year 1821 in Portugal.

• Monarch: John VI
  • President of the Regency: Manuel António de Sampaio Melo e Castro Moniz Torres de Lusignan (from January)^[1]
• Minister of the Kingdom: Inácio da Costa Quintela (from 4 July to 7 September), Francisco Duarte Coelho (interim, from 14 August to 7 September), Filipe Ferreira de Araújo e Castro (from 7 September), José da Silva Carvalho (interim, from 7 September to 8 October)^[1]

• January - General Extraordinary and Constituent Courts of the Portuguese Nation
• Cortes Gerais e Extraordinárias da Nação Portuguesa drafts the basis for a new constitution, proposes the closure of Portuguese Inquisition
• July 4 - Return of John VI from Brazil,^[1] who approves on that day the Bases da Constituição

v t e Years in Portugal
12th-15th centuries 1139 1140s 1150s 1160s 1170s 1180s 1190s 1200s 1210s 1220s 1230s 1240s 1250s 1260s 1270s 1280s 1290s 1300s 1310s 1320s 1330s 1340s 1350s 1360s 1370s 1380s 1390s 1400s 1410s 1420s 1430s 1440s 1450s 1460s 1470s 1480s 1490s 1500
16th century 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600
17th century 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700
18th century 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800
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