| John Frederick Lillicrap | |
| Office5: | Mayor of Invercargill |
| Term Start5: | 1921 |
| Term End5: | 1923 |
| Predecessor5: | John Stead |
| Successor5: | Andrew Bain |
| Birth Date: | 1 July 1866 |
| Birth Place: | Wellington, New Zealand |
| Nationality: | New Zealand |
John Frederick Lillicrap (1866–1937) was the 29th Mayor of Invercargill from 1921 to 1923. He had been a Borough councillor from 1901 to 1906 and from 1909 to 1921.
He was born in Wellington in 1866, and moved to Invercargill as a child. His father Captain Vernon Lillicrap was in charge of the Immigration Barracks.
He was a lawyer, and also practised from 1929 to 1936 in Palmerston North. He married Catherine Anne Wilson in 1899; they had one son and one daughter.