List of Polish naval and maritime flags
This is the list of naval and maritime flags of Poland.
Jack
| Flag | Date | Name | Note |
| 28.08.1919 – circa 1946 | Jack | Formally it remained in force until 31.12.1955 | |
| c. 1946 – 31.12.1955 | Jack | Early People's Republic of Poland period. No precise date of introduction nor legal source can be found | |
| 31.12.1955 – 28.12.1959 | Jack | According to some sources, not used in practice | |
| 28.12.1959 – 30.04.1993 | Jack | People's Republic of Poland period. Basically the same, as 1919-1946 | |
| 30.04.1993 - 26.03.2025 | Jack | - | |
| from 26.03.2025 | Jack | Basically the same, as 1919-1946 |
Naval ensign
| Flag | Date | Name | Note |
| 1919 – 1928 | Naval ensign and land war flag | Aspect 8:5 | |
| 1928 – c. 1946 | Naval ensign | Formally it remained in force until 31.12.1955, but apparently a flag with the crownless eagle was introduced after WWII. Aspect 5:10½ | |
| c. 1946 – 1993 | Naval ensign | People's Republic of Poland period. Formally from 31.12.1955. Aspect 1:2.1 | |
| From 1993 | Naval ensign | Basically the same, as 1928-1946. Aspect 1:2.1 |
Ensigns of auxiliary vessels of the Navy
| Flag | Date | Name | Note |
| 31.12.1955 — 14.03.1996 | Ensign of auxiliary naval vessels | Introduced in People's Republic of Poland period. | |
| From 14.03.1996 | Ensign of auxiliary naval vessels |
Flags of ships of Border Guard
| Flag | Date | Name | Note |
| 24.04.1953 – 19.11.1990 | Ensign of vessels of the Border Defence Army | In addition to People's Republic of Poland naval ensign | |
| from 03.03.1992 | Flag of the Polish Border Guard | In addition to state ensign |
Ensigns of civilian ships
| Flag | Date | Name | Note |
| 1783 — c. 1864 | So-called Polish merchant ensign | Used on ships of Cherson Trade Company 1783-1793 and on Congress Poland's vessels on the Vistula in the first half of the 19th century, under Russian protectorate | |
| 28.08.1919 — 29.03.1928 | Merchant and foreign representatives ensign | Aspect 8:5 | |
| 29.03.1928 — c. 1946 | Merchant ensign and state flag with a coat of arms | Aspect 8:5 | |
| c. 1946 — 22.02.1990 | Merchant and state ensign | Formally from 31.12.1955 | |
| From 22.02.1990 | Merchant and state ensign | The same, as 1928-1946 | |
| current | River craft ensign | At least from 29. 03. 1928 | |
| 1920-1930 | State water administration flag | not in use |