Johann Lukas Legrand (or Jean-Luc Le Grand; 30 May 1755 – 4 October 1836) was a Swiss silk ribbon manufacturer and politician at the time of the Helvetic Republic.

In this role, on 26 December 1795 he received the French deputies who had been released from Austrian captivity in exchange for Marie Thérèse, daughter of Louis XVI of France.

He became increasingly affected by the ideas of the French Revolution; and joined the small circle of young men in Basel led by Colonel Peter Ochs who wanted to forestall a French military invasion by a peaceful constitutional amendment in the Canton of Basel, which they achieved early in 1798.

[2] Later he became disillusioned with the brutality and rapacity of the French, with whom the Helvetic Republic was allied, and the sacrifices they demanded.

[2] After the Act of Mediation of 19 February 1803 established the Swiss Confederation Legrand belonged to the Council of Basel for a short period.

[3] Daniel promoted French legislation on child labor in factories, and inspired the later international laws for worker's protection.