Sleiman is Fellow of the Royal Society of Canada (2016), Associate Editor of J. Am. Chem. Soc., and Editorial Advisory Board member of J. Am. Chem. Soc., Chem., J. Org. Chem., and ChemBioChem.
Among her research recognitions are the NSERC Polanyi Award (2021), Cottrell STAR Award (2021), Albus Award (Grifols, 2018), Killam Research Fellowship (2018), Canadian Society of Chemistry R. U. Lemieux Award (2018), Netherlands Scholar Award in Supramolecular Chemistry (2018), Izatt-Christensen Award in Supramolecular Chemistry (2016), Swiss Chemical Society Lectureship (2012), Canadian Institute of Chemistry E. Gordon Young Award (2011), Canadian Society for Chemistry Strem Award (2009), NSERC Discovery Accelerator (2008), McGill Dawson Award (2004-13), Fellow of the Canadian Institute for Advanced Research (2004-12) and Cottrell Scholar (Research Corp., 2002).
Sleiman received the McGill Principal’s Prize (2002) and the Leo Yaffe Award (2005) for Excellence in Teaching.