Lucas Feltes Engel (born 1 December 1981) is a Brazilian former professional tennis player.

[1] A native of Novo Hamburgo, Engel competed in ATP Challenger and ITF Futures events, reaching a career high singles ranking of 297 in the world.

He won six Futures singles titles and was a semi-finalist at the 2006 Joinville Challenger, with wins over Ricardo Mello and André Sá.

In doubles, Engel was ranked as high as 207 and won the 2007 Florianópolis Challenger, along with 10 Futures tournaments.

[2][3] Engel's younger brother, Thomás, was a promising junior tennis player who in 2001, at the age of 16, was killed in a police shooting.