The name Allison has been used for three tropical cyclone

Tropical cyclone

A tropical cyclone is a storm system characterized by a large low-pressure center and numerous thunderstorms that produce strong winds and heavy rain. Tropical cyclones strengthen when water evaporated from the ocean is released as the saturated air rises, resulting in condensation of water vapor...

s in the Atlantic Ocean

Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 and the alternative spelling Alison has been used for one tropical cyclone in the Southwest Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

 and three in the southern Indian Ocean

Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...

.
Atlantic

• Tropical Storm Allison (1989)
  Tropical Storm Allison (1989)
  Tropical Storm Allison was a tropical cyclone that produced severe flooding in the southern United States. The second tropical cyclone and the first named storm of the 1989 Atlantic hurricane season, Allison formed on June 24 in the northwestern Gulf of Mexico. Development of Allison was a result...
  
  , partially developed from the remnants of Hurricane Cosme from the Pacific Ocean, it brought heavy rain to the southern United States, killing 11 and causing $500 million (1989 USD) in damage
• Hurricane Allison (1995)
  Hurricane Allison (1995)
  Hurricane Allison was the first named storm and first hurricane of the 1995 Atlantic hurricane season. It was an early season hurricane that delivered heavy rains and caused minor damage, primarily across Cuba, Florida and Georgia....
  
  , a Category 1 hurricane that made landfall on the Florida Panhandle as a tropical storm; killed 3 and caused minor damages
• Tropical Storm Allison
  Tropical Storm Allison
  Tropical Storm Allison was a tropical storm that devastated southeast Texas in June of the 2001 Atlantic hurricane season. The first storm of the season, Allison lasted an unusually long period of time for a June storm, remaining tropical or subtropical for 15 days...
  
   (2001), the only Atlantic storm to never reach hurricane strength and have its name retired; struck Houston, Texas, killing 41 and causing $5 billion in damages, mostly due to heavy rains and flooding

The name Allison was retired after the 2001 season, and was be replaced by Andrea. The name Allison was itself a replacement for the name Alicia, retired after 1983's Hurricane Alicia.

South Indian Ocean

• Cyclone Alison (1991), a Category 1 cyclone in the central Indian Ocean, well away from land

Southwest Pacific Ocean

• Cyclone Alison (1975), formed near New Caledonia and moved south towards South Island, New Zealand
• Cyclone Alison (1986), formed in the Timor Sea near Christmas Island before moving west; was renamed Krisostoma when it passed over 90°E
• Cyclone Alison (1998), formed near the Cocos (Keeling) Islands and brought minor effects to the islands