Ashok Sinha (born 8 November 1964) is a British environmental campaigner and commentator, best known for his involvement with the Jubilee Debt Campaign, for jointly founding Make Poverty History and leading the Stop Climate Chaos coalition.

Sinha studied physics at the University of Bristol and completed his Ph.D. in renewable energy at Cambridge. Following his qualifications he spent a number of years pursuing research into climate change science before moving into policy work with Forum for the Future.

Ashok Sinha was one of the group of UK NGO activists who found and lead the UK Make Poverty History campaign, which he did whilst he was the coordinator for the Jubilee Debt Campaign.

In 2005 he became Director of the newly-founded Stop Climate Chaos coalition. The coalition gained a high profile with its I Count campaign, which was the UK's campaign partner with the UK Live Earth event, mobilised 25,000 people for a rally in Trafalgar Square in 2006 and was the main campaign promoted at Glastonbury 2007. Stop Climate Chaos was also instrumental in helping to secure the UK's Climate Change Act and helping to put a brake on the building of new unabated coal-fired power stations. Most recently, on 5 December 2009, Ashok led SCC in delivering The Wave (ahead of the UN climate summit in Copenhagen) which was at the time the biggest single climate march and campaign event ever held.

Mala Sinha (Hindi: माला सिन्हा) (born 11 November 1936) is an Indian actress who has worked in Hindi, Bengali and Nepali films. Recognised for her talent and beauty, she went on to become a popular leading actress in Hindi films from the early 1950s until the late 1970s. Sinha has starred in over a hundred film productions: popular ones include Pyaasa (1957), Dhool Ka Phool (1959), Dil Tera Deewana (1962), Gumrah (1963), Himalaya Ki God Mein (1965) and Aankhen (1968).

Sinha was born to Albert Sinha, in a Indian-Nepali Christian family in Kashmir in India. They named her Alda. Her friends at school used to tease her by calling her Dalda (a brand of vegetable oil), so she changed her name to Mala. In her childhood she learnt dancing and singing.

She has never done playback singing in films but has been a singer and has done stage shows in many languages from 1947 to 1975.

Sinha started her career as child artist in Bengali films Jai Vaishno Devi followed by Shri Krishan Leela, Jog Biyog and Dhooli. Noted Bengali director Ardhendu Bose saw her acting in a school play and took permission from her father to cast her as a heroine in his film Roshanara (1952), her cinematic debut.