Abstract: The retail marketplace is witnessing a monumental change in consumer buyer behaviors, as hundreds of millions of people now prefer to sit at home and do almost all their daily activities on the mobile phones or computers through the internet. Firms like Amazon, Apple, and E-bay among others, are building or transforming their business models to generate sales, improve loyalty and generate additional revenue. Consequently, the commercial banks have joined the bandwagon by offering flexibility with greater focus on improving performance by introducing mobile banking. The current study endeavored to establish the relationship between mobile banking agility and performance of commercial banks in Kenya. Previous studies have shown that there are several challenges in the banking industry related to mobile banking such as low number of mobile banking transactions, slow uptake of mobile banking applications, poor security in the mobile banking platforms and poor data storage in the mobile banking platforms. The study established relationship between agility of mobile banking and performance of commercial banks in Kirinyaga County, Kenya. The study used purposive sampling with a target population is 6 registered ......................