Portugals Grand Prix 1988 var det trettonde av 16 lopp ingående i formel 1-VM 1988.
- Alain Prost, McLaren-Honda, 9 poäng
- Ivan Capelli, March-Judd, 6
- Thierry Boutsen, Benetton-Ford, 4
- Derek Warwick, Arrows-Megatron, 3
- Michele Alboreto, Ferrari, 2
- Ayrton Senna, McLaren-Honda, 1
- Alex Caffi, BMS Scuderia Italia (Dallara-Ford)
- Luis Pérez Sala, Minardi-Ford
- Philippe Streiff, AGS-Ford
- Rene Arnoux, Ligier-Judd
- Gabriele Tarquini, Coloni-Ford
- Nicola Larini, Osella
- Mauricio Gugelmin, March-Judd (varv 59, motor)
- Nigel Mansell, Williams-Judd (54, snurrade av)
- Jonathan Palmer, Tyrrell-Ford (53, överhettning)
- Alessandro Nannini, Benetton-Ford (52, hantering)
- Gerhard Berger, Ferrari (35, snurrade av)
- Nelson Piquet, Lotus-Honda (34, koppling)
- Riccardo Patrese, Williams-Judd (29, kylare)
- Pierluigi Martini, Minardi-Ford (27, motor)
- Yannick Dalmas, Larrousse (Lola-Ford) (20, generator)
- Satoru Nakajima, Lotus-Honda (16, snurrade av)
- Andrea de Cesaris, Rial-Ford (11, bakaxel)
- Eddie Cheever, Arrows-Megatron (10, turbo)
- Philippe Alliot, Larrousse (Lola-Ford) (7, motor)
- Stefan "Lill-Lövis" Johansson, Ligier-Judd (4, motor)