Leishmaniasis and Chagas disease cause great impact on social and economic aspects of people living in developing countries. The treatments for these diseases are based on the same regimen for over 40 years, thus, there is an urgent need for the development of new drugs. In this scenario, Asteraceae plants (a family widely used in folk medicine worldwide) are emerging as an interesting source for new trypanocidal and leishmanicidal compounds. Herein, we provide a non-exhaustive review about the activity of plant-derived products from Asteraceae with inhibitory action toward
Leishmania
spp. and
T. cruzi
. Special attention was given to those studies aiming the isolation (or identification) of the bioactive compounds. Ferulic acid, rosmarinic acid, and ursolic acid (
Baccharis uncinella
DC.) were efficient to treat experimental leishmaniasis; while deoxymikanolide (
Mikania micrantha
) and (+)-15-hydroxy-labd-7-en-17-al (
Aristeguietia glutinosa
Lam.) showed
in vivo
anti-
T. cruzi
action. It is also important to highlight that several plant-derived products (compounds, essential oils) from
Artemisia
plants have shown high inhibitory potential against
Leishmania
spp., such as artemisinin and its derivatives. In summary, these compounds may help the development of new effective agents against these neglected diseases.