The U.S. state of Wyoming first required its residents to register their motor vehicles and display license plates in 1913. , plates are issued and regulated by the Wyoming Department of Transportation through its Motor Vehicle Services division.

Wyoming license plates have included an image of a Bucking Horse and Rider since 1936.

Wyoming state law usually requires front and rear license plates. However, on July 1, 2015, a new law took effect that allowed custom and antique vehicles to display only rear plates, as well as vehicles that were originally manufactured without a plate bracket on the front.

Passenger baseplates

1913 to 1974 In 1956, the United States, Canada, and Mexico came to an agreement with the American Association of Motor Vehicle Administrators, the Automobile Manufacturers Association and the National Safety Council that standardized the size for license plates for vehicles (except those for motorcycles) at in height by in width, with standardized mounting holes. The 1955 (dated 1956) issue was the first Wyoming license plate that complied with these standards.

No slogans were used on passenger plates during the period covered by this subsection.

ImageDates issuedDesignSerial formatSerials issuedNotes1913Embossed red serial on white plate; "WYO" at bottom left with silver state seal above12341 to approximately 16001914Embossed white serial on blue plate; "WYO" at bottom left with silver state seal above12341 to approximately 25001915Embossed white serial on black plate; "WYO" at bottom left with embossed state seal above12341 to approximately 40001916Blue serial on white porcelain plate; "WYO." at bottom left with black state seal above12341 to approximately 7000Only porcelain plate.1917Embossed brown serial on light yellow plate with border line; "WYO." at bottom left with silver state seal above123451 to approximately 125001918Embossed white serial on brown plate with border line; "1918 WYO." at left123451 to approximately 18000First dated plate.1919Embossed black serial on light green plate with border line; "1919 WYO" at left123451 to approximately 22000Embossed white serial on dark green plate; "1920 WYO" at left123451 to approximately 30000Revalidated for 1921 with light green tabs.1921Embossed black serial on orange plate; "1921 WYO" at left1234530001 to approximately 36500Issued only to new registrants. Serials continued from where the 1920–21 plates left off.1922Embossed navy blue serial on cream plate; "1922 WYO" at left123451 to approximately 280001923Embossed white serial on navy blue plate; "WYO 1923" at left123451 to approximately 360001924Embossed white serial on red plate; "1924 WYO" at left123451 to approximately 390001925Embossed black serial on white plate; "1925 WYO" at left123451 to approximately 450001926Embossed white serial on green plate; white lines at top and bottom borders; "WYO 1926" at left123451 to approximately 450001927Embossed black serial on yellow plate; "1927 WYO" at left123451 to approximately 470001928Embossed yellow serial on navy blue plate; yellow lines at top and bottom borders; "WYO 1928" at left123451 to approximately 490001929Embossed red serial on white plate; red lines at top and bottom borders; "WYO 1929" at left123451 to approximately 520001930Embossed white serial on black plate; white lines at top and bottom borders; "WYOMING 1930" at bottom1-123410-1234Coded by county of issuance (1 or 10)First use of the full state name.1931Embossed green serial on gray plate; green lines at top and bottom borders; "WYOMING 1931" at bottom1-123410-1234Coded by county of issuance (1 or 10)1932Embossed cream serial on brown plate; cream lines at top and bottom borders; "WYOMING 1932" at bottom1-123410-1234Coded by county of issuance (1 or 10)1933Embossed black serial on white plate; black lines at top and bottom borders; "WYOMING 1933" at bottom1-123410-1234Coded by county of issuance (1 or 10)1934Embossed white serial on dark red plate; white lines at top and bottom borders; "WYOMING 1934" at bottom1-123410-1234Coded by county of issuance (1 or 10)1935Embossed blue serial on white plate; blue lines at top and bottom borders; "WYOMING 1935" at bottom1-123410-1234Coded by county of issuance (1 or 10)1936Embossed black serial and Bucking Horse and Rider on white plate with border line; "1936 WYOMING" at top1-123410-1234Coded by county of issuance (1 or 10)First use of the Bucking Horse and Rider.1937Embossed yellow serial and Bucking Horse and Rider on brown plate with border line; "1937 WYOMING" at top1-123410-1234Coded by county of issuance (1 or 10)Issued in the colors of the University of Wyoming, in honor of its 50th anniversary.1938Embossed yellow serial and Bucking Horse and Rider on navy blue plate with border line; "1938 WYOMING" at top1-123410-1234Coded by county of issuance (1 or 10)1939Embossed navy blue serial and Bucking Horse and Rider on golden yellow plate with border line; "1939 WYOMING" at bottom1-123410-1234Coded by county of issuance (1 or 10)1940Embossed white serial and Bucking Horse and Rider on turquoise plate with border line; "1940 WYOMING" at top1-123410-1234Coded by county of issuance (1 or 10)1941Embossed red serial and Bucking Horse and Rider on white plate with border line; "1941 WYOMING" at top1-12342-A12310-1234Coded by county of issuance (1 or 10)One-letter, three-digit serials issued in Laramie County after 2-9999 was reached. This occurred again in 1942.1942Embossed black serial and Bucking Horse and Rider on white plate with border line; "1942 WYOMING" at top1-12342-A12310-1234Coded by county of issuance (1 or 10)1943Embossed golden yellow serial and Bucking Horse and Rider on black plate with border line; "1943 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)Five-digit serials issued in Laramie County after 2-9999 was reached; this occurred on each subsequent base through 1955. Natrona County followed suit from 1949.1944Black serial and Bucking Horse and Rider on golden yellow fiberboard plate with border line; "1944 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)Manufactured on soybean-based fiberboard due to metal conservation for World War II.1945Embossed black serial and Bucking Horse and Rider on white plate with border line; "1945 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)1946Embossed green serial and Bucking Horse and Rider on beige plate with border line; "1946 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)1947Embossed white serial and Bucking Horse and Rider on black plate with border line; "1947 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)1948Embossed brown serial and Bucking Horse and Rider on golden yellow plate with border line; "1948 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)1949Embossed red serial and Bucking Horse and Rider on white plate with border line; "1949 WYOMING" at bottom1-1234510-1234Coded by county of issuance (1 or 10)1950Embossed white serial and Bucking Horse and Rider on black plate with border line; "1950 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)1951Embossed black serial and Bucking Horse and Rider on white plate with border line; "1951 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)1952Embossed yellow serial and Bucking Horse and Rider on black plate with border line; "52 WYOMING" at bottom1-1234510-1234Coded by county of issuance (1 or 10)1953Embossed white serial and Bucking Horse and Rider on black plate with white border line; "53 WYOMING" at bottom1-1234510-1234Coded by county of issuance (1 or 10)1954Embossed black serial and Bucking Horse and Rider on white plate with border line; "54 WYOMING" at bottom1-1234510-1234Coded by county of issuance (1 or 10)1955Embossed yellow serial and Bucking Horse and Rider on black plate with border line; "55 WYOMING" at top1-1234510-1234Coded by county of issuance (1 or 10)1956Embossed white serial and Bucking Horse and Rider on black plate with border line; "56 WYOMING" at bottom1-12341-123A-1234Coded by county of issuance (1 or )First 6" x 12" plate. Stacked county codes introduced in two-digit counties; all serials restricted to four characters in length.1957Embossed yellow serial and Bucking Horse and Rider on black plate with border line; "WYO 57" at top right1-12341-123A-1234Coded by county of issuance (1 or )1958Embossed yellow serial and Bucking Horse and Rider on green plate with border line; "WYO 58" at bottom right1-12341-123A-1234Coded by county of issuance (1 or )1959Embossed white serial and Bucking Horse and Rider on black plate with border line; "WYO 59" at top right1-12341-123A-1234Coded by county of issuance (1 or )1960Embossed yellow serial and Bucking Horse and Rider on black plate with border line; "WYO 60" at bottom right1-12341-123A-1234Coded by county of issuance (1 or )1961Embossed white serial and Bucking Horse and Rider on red plate with border line; "WYO 61" at top right1-12341-123A-1234-123ACoded by county of issuance (1 or )1962Embossed white serial and Bucking Horse and Rider on Columbia blue plate with border line; "WYO 62" at bottom right1-12341-123A-1234-123ACoded by county of issuance (1 or )1963Embossed white serial and Bucking Horse and Rider on black plate with border line; "WYO 63" at top right1-12341-123A-1234-123ACoded by county of issuance (1 or )1964Embossed white serial and Bucking Horse and Rider on red plate with border line; "WYO 64" at bottom right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1965Embossed yellow serial and Bucking Horse and Rider on black plate with border line; "WYO 65" at top right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1966Embossed white serial and Bucking Horse and Rider on dark green plate with border line; "WYO 66" at bottom right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1967Embossed white serial and Bucking Horse and Rider on red plate with border line; "WYO 67" at top right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1968Embossed yellow serial and Bucking Horse and Rider on brown plate with border line; "WYO 68" at bottom right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1969Embossed white serial and Bucking Horse and Rider on dark blue plate with border line; "WYO 69" at top right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1970Embossed yellow serial and Bucking Horse and Rider on dark green plate with border line; "WYO 70" at bottom right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1971Embossed white serial and Bucking Horse and Rider on black plate with border line; "WYO 71" at top right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1972Embossed brown serial and Bucking Horse and Rider on yellow plate with border line; "WYO 72" at bottom right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )Awarded "Plate of the Year" for best new license plate of 1972 by the Automobile License Plate Collectors Association, the first time Wyoming was so honored.1973Embossed black serial and Bucking Horse and Rider on white plate with border line; "WYO 73" at top right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )1974As 1972 base, but with "WYO 74" at bottom right1-12341-123A1-A123-1234-123ACoded by county of issuance (1 or )

1975 to present