Miss Universe 1991

The following table is the order of introduction in the Parade of Nations segment in the regional groups, randomly-ordered.

•  Bulgaria
•  Ghana
•  Romania

Last competed in 1952:

•  United Kingdom between 1955 to 1990,each constituent country on the United Kingdom (England,Scotland and Wales) sended a separated candidate to the pageant.Candidates from Northern Ireland are competing on Miss Ireland.

Last competed in 1978:

•  Nicaragua

Last competed in 1984:

•  Namibia competed for the first time as a independent country after gaining independence from South Africa in February 1990.

Last competed in 1985:

•  Yugoslavia

Last competed in 1986:

•  Cook Islands

Last competed in 1987:

•  Panama

Last competed in 1988:

•  Lebanon

Last competed in 1989:

•  Belgium
•  Brazil
•  Curaçao
•  Luxembourg
•  United States Virgin Islands

•  Venezuela - Jackeline Rodríguez

•  Philippines - Maria Lourdes Gonzalez replaced Anjanette Abayari, who was not a Philippine citizen.
•  Venezuela - Sharon Luengo - The Director of Miss Venezuela pageant, Osmel Souza wanted to send her to Miss Universe due to the delay of the Miss Venezuela 1991 contest, but the Miss Universe Organization rejected her as a contestant due to her 2nd runner-up position at Miss World 1990,[2] and they decided to select the Venezuelan delegate for Miss Universe 1991 under a special commission.[3]
•  Soviet Union – The winner of Miss USSR 1990, Maria Kezha, was underage after February 1.[4]

•  Aruba – the Miss Aruba 1991 pageant was delayed and their 1991 winner, Jerusha Rasmijn, was sent to Miss Universe 1992.
•  Australia - due to lack of sponsorship and funding
•  Austria - Christine Heiss
•  Denmark - Sharon Givskav - due to lack of sponsorship and funding. She went to Miss World 1991 instead.
•  Egypt - no contest.
•  England - Competed as United Kingdom or Great Britain since then.
•  Gibraltar - Sarah Yeats (lost their license with the Miss Universe Inc.)
•  Greenland - Bibiane Holm (lost their license with the Miss Universe Inc.) and went to Miss World 1991 instead
•  Honduras - Claudia Mercedes Caballero (She fell ill and withdrew due to the fact that she suffered from chronic fatigue and had to rest by medical prescription.)
•  Portugal - Carla Lopes Da Costa Caldeira
•  Scotland - Competed as United Kingdom or Great Britain since then.
•   Switzerland - Priscilla Leimgruber (She fell ill and withdrew at the last minute.)
•  Wales - Competed as United Kingdom or Great Britain since then.

•  Kenya - Aisha Wawira Lieberg - due to lack of sponsorship and funding. She went to Miss Universe 1992 instead.
•  New Zealand - Adele Valerie Kenny (because she was underage before February 1)[5]

• Holland began competing as Netherlands.
• Great Britain began competing as United Kingdom for the first time[6]