| Lallan Prasad Singh | |
| Honorific Suffix: | ICS |
| Office: | Governor of Assam |
| Term Start: | 19 September 1973 |
| Term End: | 10 August 1981 |
| Appointer: | V. V. Giri |
| 1Blankname: | Chief Minister |
| 1Namedata: | Sarat Chandra Sinha Golap Borbora Jogendra Nath Hazarika Anwara Taimur Kesab Chandra Gogoi |
| Predecessor: | Braj Kumar Nehru |
| Successor: | Prakash Mehrotra |
| Office1: | Governor of Meghalaya |
| Status1: | Additional charge |
| Term Start1: | 19 September 1973 |
| Term End1: | 10 August 1981 |
| Appointer1: | V. V. Giri |
| 1Blankname1: | Chief Minister |
| 1Namedata1: | Williamson A. Sangma Darwin Diengdoh Pugh B. B. Lyngdoh Williamson A. Sangma |
| Predecessor1: | Braj Kumar Nehru |
| Successor1: | Prakash Mehrotra |
| Office2: | Governor of Nagaland |
| Status2: | Additional charge |
| Term Start2: | 19 September 1973 |
| Term End2: | 10 August 1981 |
| Appointer2: | V. V. Giri |
| 1Blankname2: | Chief Minister |
| 1Namedata2: | Hokishe Sema Vizol Koso John Bosco Jasokie Vizol Koso S. C. Jamir John Bosco Jasokie |
| Predecessor2: | Braj Kumar Nehru |
| Successor2: | S. M. H. Burney |
| Office3: | Governor of Manipur |
| Status3: | Additional charge |
| Term Start3: | 23 September 1973 |
| Term End3: | 10 August 1981 |
| Appointer3: | V. V. Giri |
| 1Blankname3: | Chief Minister |
| 1Namedata3: | Mohammed Alimuddin Yangmaso Shaiza Rajkumar Dorendra Singh Yangmaso Shaiza Rajkumar Dorendra Singh Rishang Keishing |
| Predecessor3: | Braj Kumar Nehru |
| Successor3: | S. M. H. Burney |
| Office4: | Governor of Tripura |
| Status4: | Additional charge |
| Term Start4: | 23 September 1973 |
| Term End4: | 10 August 1981 |
| Appointer4: | V. V. Giri |
| 1Blankname4: | Chief Minister |
| 1Namedata4: | Sukhamoy Sen Gupta Prafulla Kumar Das Radhika Ranjan Gupta Nripen Chakraborty |
| Predecessor4: | Braj Kumar Nehru |
| Successor4: | S. M. H. Burney |
| Office5: | Ambassador of India to Nepal |
| Term Start5: | 22 January 1972 |
| Term End5: | 5 September 1973 |
| Predecessor5: | Raj Bahadur |
| Successor5: | Maharaja Krishna Rasgotra |
| Office6: | Home Secretary |
| Term Start6: | 18 September 1964 |
| Term End6: | 1 January 1971 |
| Predecessor6: | V. Vishwanathan |
| Successor6: | Govind Narain |
| Birth Date: | 1912 |
| Death Date: | 9 November 1998 (age 86) |
| Awards: | Padma Vibhushan (1999) (posthumously) |
Lallan Prasad Singh ICS (1912 – 17 October 1998) was Governor of Assam (1973–80), Manipur (1973–80, 1982–83), Meghalaya (1973–80), Nagaland (1973–81), and Tripura (1973–80).
He was awarded Padma Vibhushan award in 1999 after his death.
He was born in Buxar, Bihar, India, in 1912[1] and died in New Delhi on 17 October 1998. A member of the 1936 batch of the Indian Civil Service, he joined the ICS on 9 September 1936.[2] After independence in 1947, he had a long and distinguished career in the civil service. L.P. Singh was Chief Secretary to the government of Bihar in the first post-independence government (1946–61). He also served briefly as the Finance Secretary to the government of Bihar. He enjoyed the confidence of both the first Bihar Chief Minister Dr S K Singh & deputy Chief Minister cum Finance Minister Dr Anugrah Narain Sinha. He also held several posts including Home Secretary of India, Governor of the five North Eastern States and Indian Ambassador to Nepal.
Apart from his bureaucratic career, Singh also authored two books: Portrait of Lal Bahadur Shastri: the Quintessential Gandhian and Electoral Reform in India.
He was married to Manorama Singh (née Mehta) and had four children, namely, Vineeta, Nandini, Vijay and Priyadarshini.