Coffins representing two men and two women who resisted the Nazis in World War Two were carried through the French capital before being interred.
The coffins contained only soil from the fighters' graves as their relatives did not want their bodies disturbed.
French President Francois Hollande said the group "embodied the spirit of the Resistance".
A ceremony was held at the Pantheon alongside the coffins of Germaine Tillion, Genevieve de Gaulle-Anthonioz, Pierre Brossolette and Jean Zay.
Tillion, who died in 2008, and de Gaulle-Anthonioz, a niece of former French leader Charles de Gaulle who died in 2002, were caught and deported to the Ravensbruck concentration camp in Germany.
Brossolette, a radio journalist who broadcast on the BBC during the war, committed suicide after being arrested and tortured in 1944.
Zay, who was minister of education before the war, was killed in 1944, having tried to set up a government-in-exile in north Africa.
"Faced with the occupation, with submission, they gave the same response," Mr Hollande said. "They said 'no', immediately, firmly, clearly."
Mr Hollande drew parallels with those who marched in French cities on January 11 this year, days after terror attacks on the Charlie Hebdo newspaper and a kosher supermarket.
The induction now sees three women interred at the Pantheon, after the scientist Marie Curie. There are now 74 men interred at the mausoleum, the first being the writer Victor Hugo.

The 24-year-old striker, who scored 25 Premier League goals last season, turned down the most lucrative contract offer in Everton's history in March.
"I don't want to stay at the same level. I want to improve and I know where I want to do that," Belgian Lukaku said on Monday.
Former club Chelsea, who he originally signed for in 2011, remain favourites to complete a deal for Lukaku.
The Premier League champions, Manchester United and Bayern Munich have been linked with a move for Lukaku, who has been at Everton since 2013.
"We are now talking to the club. I know what's happening, but I will leave the talks to my agent," he added to journalists after Belgium beat the Czech Republic in a friendly in Brussels.
"I know what's happening, but I can't tell you anything more.
"What I would like most is to play in the Champions League and try to win the Premier League once. Or better - a few times."
Lukaku is represented by Mino Raiola, the agent who helped negotiate Paul Pogba's £89m move to Manchester United last summer.

Maxwell Cornet controlled Alexandre Lacazette's pass to drive in an opener.
Sergi Darder added an exquisite second on half-time, controlling Rafael's cross and flicking it past Kevin Trapp.
Despite Lucas Moura's steered finish, PSG lost their first league game since last March, but still have a 23-point lead at the top.
Laurent Blanc's side had not lost a league match since a 3-2 defeat at Bordeaux 11 months earlier, but looked off the pace and struggled without the creative influence of injured winger Angel di Maria.
After Cornet's opener, PSG could have been reduced to 10 men, as midfielder Thiago Motta escaped with a booking for raising his fist to the side of Jordan Ferri's head.
The leaders' best spell of pressure came shortly before Darder made it 2-0, with Zlatan Ibrahimovic having a shot beaten out by Lyon keeper Anthony Lopes.
PSG rarely looked like equalising after Lucas scored, and the excellent Rachid Ghezzal should have added a third for the home side when clean through, but Trapp advanced from his line to block.
Monaco, in second place, end the weekend having narrowed the gap at the top, despite dropping points themselves in a 0-0 draw at Nantes.
Caen had moved above Lyon and into third earlier on Sunday by winning 2-1 at St-Etienne, with former Wigan striker Andy Delort among the scorers.
France has honoured four members of the French Resistance with a ceremony at the Pantheon mausoleum in Paris.
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Everton's Romelu Lukaku has decided where he wants to play next season.
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Paris St-Germain's 36-match unbeaten run in Ligue 1 was ended as Lyon beat them to move into the third and final Champions League qualification spot.