Alasdair = AL-uh-sder Alastair = AL-uh-ster Alister = AL-uh-ster Alistair= AL-uh-ster^All basically the same.Quentin = KWEN-tin Quintin = KWIN-tin Quinten = KWIN-tun Quinton = KWIN-tun^All basically the same except QUEN/QUIN. Sometimes sentences don't end the way you think they salad.