Like most barangay names in Muntinlupa City, the name “Bayanan” originates from a plant name. Báyan, also known as palumpong, which means shrub. This plant produces lilac flowers and stands out with their rounded leaves, and can still be seen around to this day. Its flowers and leaves are believed to have antiseptic properties, meaning they inhibit the growth of microorganisms in and on living tissue. The name Bayanan does not derive from bayan, meaning town; it is literally a place where the plant báyan grew in abundance. Bayanan is the second smallest Barangay, which is only about 1.68% of the total land area of Muntinlupa.

Bulaklakan Festival is a festival that the people of Muntinlupa look forward to. It is to celebrate the start of a more prosperous and fruitful year for them, as they are labeled as one of the most progressive cities in the country.

The vibrant Bulaklakan event literally translates to "flower parade." Students from several Muntinlupa schools generally participate in street dance and huge parades during this festival. They are dressed in brightly colored outfits that imitate different kinds of flowers. Thus filling the city of Muntinlupa with a large and magnificent multicolored array of flowers. This spectacular event adds energy and happiness to New Year's Day, to all the locals of Muntinlupa City.

A Saturday devotion to Mary, Mother of God is held regularly. Her feast day is celebrated on the first of January. This devotion was given motive in the early years of the parish, however was only further developed through Rev. Fr. Yulito Ignacio, a parish priest from 1989 to 1991. Old rumors state that during typhoon season, a season very reoccurring in the Philippines, that there would be a woman carrying her child that strolled around the area helping harmed citizens, and later on would see a painting in the parish that looked exactly like her. Miracles would then be reported throughout the years, may it be from holistic health, finance, peace, unity, etc., it further strengthened the devotion to this celebration.