HDFC (Housing Development Financial Corporation) Bank Limited is an Indian banking and financial services company headquartered in Mumbai, Maharashtra. It has 84,325 employees and has a presence in Bahrain, Hong Kong and Dubai. HDFC Bank is India’s largest private sector lender by assets. It is the largest bank in India by market capitalization as of February 2016. It was ranked 69th in 2016 BrandZ Top 100 Most Valuable Global Brands.

In 1994 HDFC Bank was incorporated, with its registered office in Mumbai, India. Its first corporate office and a full service branch at Sandoz House, Worli were inaugurated by the then Union Finance Minister, Manmohan Singh.

As of June 30, 2017, the bank's distribution network was at 4,727 branches and 12,220 ATMs across 2,666 cities and towns.

HDFC Bank provides a number of products and services including wholesale banking, retail banking, treasury, auto loans, two wheeler loans, personal loans, loans against property and credit cards.

The latest entry in the league is 'Project AI', under which HDFC Bank, over the next few weeks, would deploy robots at select bank branches. These robots will offer options such as cash withdrawal or deposit, forex, fixed deposits and demat services displaying on a screen to customers.

HDFC Bank merged with Times Bank in February 2000. This was the first merger of two private banks in the New Generation private sector banks category. In 2008, Centurion Bank was acquired by HDFC Bank. HDFC Bank Board approved the acquisition of CBoP for 95.1 billion INR in one of the largest mergers in the financial sector in India.

The equity shares of HDFC Bank are listed on the Bombay Stock Exchange and the National Stock Exchange of India. Its American Depository Shares are listed on NYSE and the global depository receipt are listed on the Luxembourg Stock Exchange where two GDRs represent one equity share of HDFC Bank.