The day, named in honour of the world's first computer programmer, aims to inspire women to pursue careers in these subjects.
The University of Bristol has a planned and many of its female students and staff will be taking part in a campaign to help inspire others.
Mathematician Dr Julia Wolf will be explaining during a public lecture, explaining how pure mathematics can help us communicate despite the noise.
The University of Bristol's Women in Engineering Society, Computer Science Society, Electronic and Electrical Engineering Society (BEEES) and the Women in Science Society will be hosting a series of talks from alumni and female speakers during the day.
Events continue into November with the being given by leading cancer researcher Professor Frances Balkwill on 4 November.
And on 18 November a number of local schools will be visiting the University and seeing interactive experiments from the various science, technology, engineering and maths departments, complete with a poster competition.
Although Lovelace, the daughter of Lord Byron, died in 1852 - almost 100 years before work began on modern day computers – her work with inventor Charles Babbage on the 'analytical engine' makes her an important figure in the early development of computer technology.
Lovelace’s mathematical notes include what is widely accepted as the first algorithm intended to be carried out by a machine. Babbage was so impressed with her talents that he called her the 'Enchantress of Numbers'.
also aims to challenge the perception that science, technology, engineering, maths and medicine – known as STEMM subjects - are dominated by men. This year it marks what would have been her 200th birthday.
#UoBinspired campaign
Researchers, teachers and students from Bristol University will be sharing their experiences on social media in support of the globally-celebrated day. Follow their activity using the #UoBinspired hashtag across Twitter, Facebook, Instagram, YouTube and LinkedIn.
is running interviews with women working in STEMM subjects throughout the week.