The Royal Order of the Polar Star (Swedish: Kungliga Nordstjärneorden), sometimes translated as the Royal Order of the North Star, is a Swedish order of chivalry created by King Frederick I on 23 February 1748, together with the Order of the Sword and the Order of the Seraphim. The Order of the Polar Star is intended as a reward for Swedish and foreign "civic merits, for devotion to duty, for science, literary, learned and useful works and for new and beneficial institutions".

Its motto is, as seen on the blue enameled centre of the badge, Nescit Occasum, a Latin phrase meaning "It knows no decline". This is to represent that Sweden is as constant as a never setting star. The Order's colour is black. This was chosen so that when wearing the black sash, the white, blue and golden cross would stand out and shine as the light of enlightenment from the black surface. The choice of black for the Order's ribbon may also have been inspired by the black ribbon of the French Order of St. Michael, which at the time the Order of the Polar Star was instituted was also awarded to meritorious civil servants. From 1975–2023, the ribbon of the Order was blue with yellow stripes near the edges (i.e., the national colors, but the reverse of the Order of the Sword's yellow ribbon with blue stripes near the edges). The black ribbon was reintroduced in 2023 when guidelines to once again award Swedish honours to Swedish citizens were introduced. Women and clergymen are not called Knight or Commander, but simply Member (Ledamot).

From the reorganization of the orders in 1975 until 2023, the Order was only awarded to foreigners and members of the royal family, often being awarded to foreign office holders (such as prime and senior ministers) during Swedish state visits. It is also awarded to junior members of royal families who would not qualify for the more prestigious Royal Order of the Seraphim. In 2019, a parliamentary committee was instructed to establish guidelines on how to re-introduce the Swedish orders, including the Order of the Polar Star, into the Swedish honours system, and how Swedish citizens again can be appointed to Swedish orders.^[3] The committee presented its findings in September 2021 and the Government declared that a bill on the subject would be presented to the Riksdag on 19 April 2022. The bill passed the Riksdag by a large majority on 19 June 2022. On 20 December 2022, the Swedish Government published a new regulation that repealed the 1974 regulation, and once again opened the Royal Orders to Swedish citizens again and reactivated the Order of the Sword and the Order of Vasa, which came in effect from 1 February 2023.^[4][5][6]

It was first awarded again in 2024 when Svante Pääbo among others were appointed to the order.^[7]

The Order has five degrees:

1. Commander Grand Cross (KmstkNO) – Wears the badge on a collar (chain) or on a sash over the right shoulder, plus the star on the left chest;
2. Commander 1st Class (KNO1kl) – Wears the badge on a necklet, plus the star on the left chest;
3. Commander (KNO) – Wears the badge on a necklet;
4. Knight 1st Class (RNO1kl) – Wears the badge on a ribbon on the left chest;
5. Knight (RNO) – Wears the badge on a ribbon on the left chest.

Before 2023, clergymen and women were not called Knight, but instead made a Ledamot av andliga ståndet ("Member of the Cloth") for priests or a Ledamot ("Member") for Women. However, since 2023, the order make no difference between men and women.^[8]

The Order also has a medal: the "Polar Star Medal".

• The collar of the Order is in gold, consists of eleven white-enamelled five-pointed stars and eleven crowned back-to-back monogram "F"s (for King Frederick I of Sweden) in blue enamel, joined by chains.
• The badge of the Order is a white enamelled Maltese Cross, in silver for a Knight and in gilt for a Knight 1st Class and above; crowns appear between the arms of the cross. The central disc, which is identical on both sides, is in blue enamel, with a white-enamelled five-pointed star surrounded by the Order's motto Nescit occasum ("It knows no decline"). The badge hangs from a royal crown.
• The star of the Order is a silver Maltese cross, with a silver five-pointed star at the centre. The star of a Grand Cross also has straight silver rays between the arms of the cross.
• The ribbon of the Order is black.^[9] From 1975–2023 it was blue with yellow stripes near its borders (see above). In spring 2013, the Grand Master decided that Swedish royal princes would wear the Order with the original black ribbon, while other members would still use the blue with yellow stripes. From 2023, the black ribbon was used again. The last black ribbon 18kt gold Knight class prior to 2023 was awarded in 1988 to historian George Loper of Bridgeton, New Jersey, for his research which was the basis for the New Sweden Farmstead Museum. This was presented by the King.
• The Order used to have a distinctive red and white habit worn on formal occasions such as at chapters of the Order. The habit included red breeches and red doublet, both with padded shoulders and white piping, a white sash with a gold fringe around the waist and a red mantle with white lining. The star of the Order was embroidered on the left breast of both the doublet and the mantle. A black top hat with a gold hat band and a plume of white ostrich and black egret feathers and red boots with gilded spurs completed the habit. The collar of the Order was worn over the shoulders of the doublet. Clergymen of the Church of Sweden wore the Order around the neck with a white cassock with a red sash with a gold fringe around the waist and a red mantle with a white lining and with the star of the Order embroidered on its left side.

• Grand Cross set of insignia
• Grand Cross set of insignia (1975–2023)
• Grand Cross in its case of issue
• Grand Cross breast star
• Grand Cross in its case of issue
• Set of the Grand Cross
• Set of the Grand Cross (1975–2023)
• Badge of the Grand Cross
• Pre and Post-1975 sets of the Commander grade of the Order
• Grand Cross (1975–2023)
• Grand Officer (Commander 1st Class) Star of the Order
• Grand Cross in its case of issue
• Pre and Post-1975 sets of the Commander grade of the Order
• Grand Cross in its case of issue (1975–2023)

• Orders, decorations, and medals of Sweden
• List of recipients of the Order of the Polar Star