The 22 year-old will represent Uganda in the Miss World beauty pageant that will take place in China this December.
Abenakyo was followed by Tyra Margach and Ahebwa Patience Martha as first and second runners-up respectively.
Quiin was rewarded with a Toyota Wish car (UBD series), and with the 1st and 2nd runners-up will go to the Netherlands, have a treat at Pineapple Bay in Bulago Islands and a one-year gym session at Sheraton Hotel Kampala.
She takes over from Leah Kagasa (Miss Uganda 2016), who had the crown for 2 years as the pageant was not held in 2017.
The beauty queen hails from Mayuge District in Busoga region.
The event was held at Sheraton hotel Kampala.
The trio have also won themselves scholarships at the Uganda Aviation school that will include, among others, cabin crew training, customer care for airlines, aviation security and of course ticketing.
Abenakyo, Ahebwa and Margach at Sheraton hotel after the contest. (Credit: Richard Sanya)
Sandra Khan and Nanziri Elizabeth were the other two of the top five finalists at the Miss Uganda 2018-2019 beauty contest.